otheruses4 the journal StatisticalScience the mathematical science of statistics Statistics Infobox Journal title StatisticalScience cover discipline Statistics language English website http www.imstat.org sts publisher Institute of Mathematical Statistics country United States USA history 1986 to present frequency ISSN 0883 4237 OCLC 12143452 LCCN sn98 23316 impact 3.523 impact year 2009 link1 http projecteuclid.org handle euclid.ss link1 name Access via Project Euclid JSTOR 08834237 StatisticalScience is a review journal published by the Institute of Mathematical Statistics . The founding editor was Morris H. DeGroot . Further reading cite journal url http www.imstat.org sts degroot.pdf title Editorial The purpose of StatisticalScience first Morris H last DeGroot authorlink Morris H. DeGroot journal StatisticalScience volume 1 pages 1 2 External links http www.imstat.org sts StatisticalScience home page Statistics journals Category Institute of Mathematical Statistics Category Statistics journals socialscience journal stub ... more details
Inappropriate tone date March 2011 The International Encyclopedia of StatisticalScience is one of the largest international scientific projects ever conducted from the number of involved countries perspective since it includes contributors coming from 105 countries and six continents for comparison, the Encyclopedia of Statistical Sciences involves authors from 30 countries. ref cite web url http onlinelibrary.wiley.com book 10.1002 0471667196 title Encyclopedia of Statistical Sciences Wiley Online Library doi 10.1002 0471667196 publisher Onlinelibrary.wiley.com date accessdate 2010 12 26 ref . It contains last papers written by Hirotugu Akaike , Nobel Laureate Sir Clive Granger , John Nelder and Erich Leo Lehmann . The first edition, in three volumes, was edited by Miodrag Lovri and appeared in December 2010. It is published by Springer Science Business Media Springer . References reflist External links http www.springer.com statistics book 978 3 642 04897 5 Category Encyclopedias on science and mathematics Statistical Sciences Category Mathematics books Category Statistics books mathematics lit stub ... more details
The Professorship of StatisticalScience is a List of Professorships at the University of Cambridge professorship at the University of Cambridge . ref Citation title Statutes and Ordinances of University of Cambridge url http www.admin.cam.ac.uk univ so pdfs ref It was established in 1994 as the third professorship within the Cambridge Statistical Laboratory, University of Cambridge Statistical Laboratory . ref Citation first1 P. last1 Whittle title The Cambridge Statistical Laboratory up to 1993 revised 2002 url http www.statslab.cam.ac.uk History 2history.html ref List of Professors of StatisticalScience 1994&ndash 1996 Richard L. Smith 2002&ndash Chris Rogers mathematician L. C. G. Rogers References Reflist Category Cambridge Professorships StatisticalScience Category 1994 establishments Category Mathematical chairs Cambridge ... more details
Statistical epidemiology is an emerging branch of the disciplines of epidemiology and biostatistics that aims to Bring more statistical rigour to bear in the field of epidemiology Recognise the importance of applied statistics , especially with respect to the context in which statistical methods are appropriate and inappropriate Aid and improve our interpretation of observations Introduction The science of epidemiology has had enormous growth, particularly with charity and government funding. Many researchers have been trained to conduct studies, requiring multiple skills ranging from liaising with clinical staff to the statistical analysis of complex data , such as using Bayesian method s. The role of a Statistical Epidemiologist is to bring the most appropriate methods available to bear on observational study from medical research, requiring a broad appreciation of the underpinning methods and their context of applicability and interpretation. The earliest mention of this phrase was in an article ... ABSTRACT?CRETRY 1&SRETRY 0 , taking a critical look at the way in which statistical methods were developing and being applied in the science of epidemiology. Academic recognition There are two Professors of Statistical Epidemiology in the United Kingdom http www.leeds.ac.uk medhealth light staff ... ide research groups stats Imperial College , London and a Statistical Epidemiology group Oxford University . Related fields Statistical epidemiology draws upon quantitative methods from fields such as statistics , operations research , computer science , economics , biology , and mathematics ... Biometric Society The http www.amstat.org index.cfm?fuseaction main American Statistical Association The http www.rss.org.uk main.asp?page 0 Royal Statistical Society The http www.bca.edu.au Biostatistics ... EB. A critical look at statistical epidemiology. Cancer 1963 16 510 5. http www3.interscience.wiley.com ... of application of statistics Category Statistical terminology Category Biostatistics ... more details
Statistical literacy is a term used to describe an individual s or group s ability to understand statistics . Statistical literacy is necessary for citizens to understand material presented in publications ... to critically evaluate statistical material and to appreciate the relevance of statistically based approaches to all aspects of life in general. ref Dodge, Y. 2003 The Oxford Dictionary of Statistical Terms , OUP. ISBN 0 19 920613 9 ref ref Wallman, K. 1993 Enhancing statistical literacy Enriching our society. J. American Statistical Association , 88, 1&ndash 8 ref ref http www.stat.auckland.ac.nz iase publications isr 02.Gal.pdf Gal, I. 2002 . Adults statistical literacy Meaning, components, responsibilities with Discussion . International Statistical Review , 70 1 , 1 51. ref Aspects of statistical literacy Many official statistical agencies such as Statistics Canada and the Australian Bureau ... ref http www.stat.auckland.ac.nz iase islp The International Statistical Literacy Project ref of the International Statistical Institute is the only international organization whose focus is to promote national programs and drives to increase the statistical literacy of all members of society ..., use statistics. People involved in these fields generally have studied the meaning of statistical ... course in statistics as part of a professional program. Each day people are inundated with statistical ..., and statistical literacy is a necessary skill to help one decide what experts mean and which ... of data that may seem valid. The aim of statistical literacy proponents is to improve the public ..., but the quality of such polls varies considerably. Some understanding of the statistical technique ... spent in the design of the questions and polling strategy. Statistical literacy is necessary to understand ... Heiberger,R.M., Holland, B. 2004 Statistical Analysis and Data Display . Springer. ISBN 0 387 40270 ... 2010 Gambling is one setting in which a lack of statistical literacy can be costly. Citation ... more details
a year or two to have the statistical proof needed to confirm its presence http www.channel4.com news articles science technology qa the large hadron collider 2449067 ref , which may result in statistical ...See Statistics Statistical test Data analysis Bayesian analysis Mathematical proof . The term statistical ... of data under specified assumptions and hypotheses, this is a statistical proof . Examples of the assumptions are that the data are Statistical independence independent and have an underlying ... statistical test , the ratio of probabilities of an event occurring under each of two hypotheses ... that there is statistical proof of one hypothesis. Since the assumptions of mathematical statistics ..., as in the medical, natural, and social sciences . In that case, the term statistical proof is still sometimes used to refer to the outcome of a statistical test. ref Optimism is no longer merely the product of gut feelings but is supported by statistical proof both from the providers themselves ... and Protection ref ref I don t have any statistical proof of this, but I firmly believe that cheating ... Newspaper ref ref Based on clear statistical proof about which combination of design works most successfully ... press release ref In these statistical proofs , with assumptions that are only probably true ... mathematical tools and methods are employed. Bayesian analysis &mdash A statistical proof in Bayesian ... 2008 Exploratory data analysis &mdash Statistical proof may refer to a scatter plot or product ... uses &mdash Statistical proof may colloquially refer to raw data where the data makes the conclusion obvious . ref Southern Cal s defensive line dominated Ohio State last weekend. Here s statistical ... use of statistical proof is often interchangeable with a colloquial use of mathematical proof , even ... appear from a distance to be points, is statistical proof of the existence of a gravitational force ... , and others, the expression statistical proof may be used in a well defined manner, or colloquially ... more details
, there is a large collection of statistical tools that we generally refer to as graphical techniques ..., and outlier detection. In addition, good statistical graphics can provide a convincing ... statistical methods have four objectives ref William G. Jacoby 1997 . Statistical Graphics for Univariate and Bivariate Data Statistical Graphics pp.2&ndash 4 ref The exploration of the content of a data set The use to find structure in data Checking assumptions in statistical models Communicate the results of an analysis. If one is not using statistical graphics, then one is forfeiting insight into one or more aspects of the underlying structure of the data. History Statistical graphics have been central to the development of science and date to the earliest attempts to analyse data. Many familiar forms, including Bivariate map bivariate plots , statistical maps , bar chart s, and coordinate paper were used in the 18th century. Statistical graphics developed through attention to four .... Since the 1970th statistical graphics have been re emerging as an important analytic tool with the revitalisation ... , who used statistical graphics to persuade the British Government to improve army hygiene, John ... Napoleon s campaign in Russia is the best known. A special type of statistical graphic are the so ... a website devoted to data visualization and statistical graphics Statistics descriptive state collapsed Visualization Category Statistical charts and diagrams Category Infographics fr Repr sentations ... more details
being. In science, all scientific theories are revisable ref Cluster analysis clustering or Statistical .... StatisticalScience 5 4 465 472. Trans. Dorota M. Dabrowska and Terence P. Speed. ref ref cite book ... Sandy L. Zabell journal StatisticalScience volume 7 issue 3 month Aug. year 1992 pages 369 387 ...Statistical inference is the process of drawing conclusions from data that are subject to random variation ... Dictionary of Statistics , OUP 978 0 19 954145 4 ref More substantially, the terms statistical inference , statistical induction and inferential statistics are used to describe systems of procedures that can .... ref Dodge, Y. 2003 The Oxford Dictionary of Statistical Terms , OUP. ISBN 0 19 920613 9 entry for inferential .... The outcome of statistical inference may be an answer to the question what should be done next? , where ... part, statistical inference makes propositions about populations, using data drawn from the population ... which one wishes to make inference, statistical inference most often uses a statistical model of the random ... process i.e., a set of data. The Logical consequence conclusion of a statistical inference is a statistical proposition . Some common forms of statistical proposition are an point estimation estimate ... containing, for example, 95 of posterior belief, rejection of a statistical hypothesis testing ... Statistical inference is generally distinguished from descriptive statistics . In simple terms, descriptive ... modeling decisions made by a data analyst have had minimal influence. A complete statistical analysis will nearly always include both descriptive statistics and statistical inference, and will often ... Assumptions Main Statistical model Statistical assumptions Any statistical inference requires some assumptions. A statistical model is a set of assumptions concerning the generation of the observed data and similar data. Descriptions of statistical models usually emphasize the role of population ... random sampling can invalidate statistical inference. ref cite journal title Miracles and Statistics ... more details
The theory of statistics includes a number of topics Statistical model s of the sources of data and typical problem formulation survey sampling Sampling from a finite population Measuring observational error and refining procedures Studying statistical multivariate statistics relations Generating informative data using Optimization mathematics optimization and randomization while measuring and controlling observational error . ref Peirce, Theory of Errors of Observations, Notes on the Theory of Economy of Research, ref Optimization mathematics Optimization reduces the cost of data while meeting statistical needs, while randomization warrants reliable inferences Design of experiments to determine treatment effects. ref Peirce, Hinkelmann and Kempthorne. C.f. Bailey. ref Survey sampling to describe natural populations Summarizing statistical data in conventional forms also known as descriptive statistics Choosing summary statistics to describe a sample Fitting probability distribution s to sample data Interpreting statistical data Interpreting data is an important objective of statistical research Common statistical assumptions assumptions that we make Likelihood principle estimation theory Estimating parameters Statistical hypothesis testing Testing statistical hypotheses See also Mathematical statistics Probability Statistics List of statistical topics Bibliography Charles Sanders ... Illustrations of the Logic of Science 1883 , Charles Sanders Peirce bibliography SIL A Theory of Probable ... Prentice Hall isbn 013850363X cite book author Erich Leo Lehmann Lehmann, Erich title Testing Statistical ... Estimation year 1983 cite book author Liese, Friedrich and Miescke, Klaus J. title Statistical Decision ... Statistical Models Theory and Practice publisher http www.cambridge.org catalogue catalogue.asp?isbn ... Statistical Models . Cambridge University Press 2003 . References Reflist References Reflist DEFAULTSORT Statistical Theory Category Statistical theory tl Teorya ng estadistika ... more details
Unreferenced date January 2007 In statistical mechanics , the statistical weight is the relative probability possibly unnormalized of a particular feature of a state. If the energy associated with the feature is E , the statistical weight is given by the Boltzmann factor e sup E kT sup , where k is the Boltzmann constant and T is the temperature in kelvin s. The statistical weight is a convenient shorthand that is often used in transfer matrix solutions of problems in statistical mechanics . DEFAULTSORT Statistical Weight Category Statistical mechanics Thermodynamics stub ... more details
linguistics Statistical semantics is the study of how the statistical patterns of human word usage can be used to figure out what people mean, at least to a level sufficient for information access George Furnas Furnas , 2006 . How can we figure out what words mean, simply by looking at patterns of words in huge collections of text? What are the limits to this approach to understanding words? History The term Statistical Semantics was first used by Warren Weaver Weaver 1955 in his well known paper on machine translation . He argued that word sense disambiguation for machine translation should be based ... . Delavenay 1960 defined Statistical Semantics as Statistical study of meanings of words and their frequency ... contribution to Statistical Semantics. An early success in the field was Latent semantic analysis Latent Semantic Analysis . Applications of statistical semantics Research in Statistical ... many aspects of semantics , by applying statistical techniques to Text corpus large corpora ... and Littman, 2003 Related fields Statistical Semantics focuses on the meanings of common words ..., document collections, or named entities names of people, places, and organizations . Statistical Semantics ... and natural language processing . Many of the applications of Statistical Semantics listed ... of Statistical Semantics. One advantage of corpus based algorithms is that they are typically ..., and Dumais, S.T. 1983 . Statistical semantics Analysis of the potential performance of keyword information ... Annual Conference of the Cognitive Science Society , pages 660 665. McDonald, S., and Ramscar, M ... of the 23rd Annual Conference of the Cognitive Science Society, pages 611 616. Pantel, P., and Lin ... for statistical word similarity measures. In Proceedings of the Human Language Technology and North ... Translation of Languages , Cambridge, MA MIT Press. ISBN 0 8371 8434 7 DEFAULTSORT Statistical Semantics ... retrieval Category Semantics Category Statistical natural language processing Category Fields ... more details
seealso econophysics complexity statistical physics modeling and analysis of financial markets Statistical finance , ref J P Bouchaud, An introduction to Statistical Finance, Physica A 313 2002 238&ndash 251 ref sometimes called econophysics , ref V. Perou, E. Gopikrishnan, L A Amaral, M. Meyer, H. E. Stanley, Phys. Rev. E 60 6519 1999 ref is an empirical attempt to shift finance from its Normative economics normative roots to a positivist framework using exemplars from statistical physics with an emphasis on emergent or collective properties of financial markets. The starting point for this approach ... objectives Statistical finance is focused on three areas Empirical studies focused on the discovery of interesting statistical features of financial time series data aimed at extending and consolidating ... based model . Behavioral finance and statistical finance Behavioural finance attempts to explain ... and to a lesser degree aggregation of agent behaviour. Statistical finance is concerned with emergent ... the description of financial markets blindly in terms of models of statistical physics has ... configurations are not observed. The market does not self organize into a stable statistical equilibrium ... which has been done within economics itself. Resistance to more rigorous and robust statistical methodology ... muenchen.de 2126 ref Some of the ideas arising from nonlinear sciences and statistical physics have ... the field towards methods of natural science ref J P. Bouchaud, Economics needs a scientific ... science where markets are observed in the same way as the observable universe in cosmology ... reproducing the system being observed. The required science becomes that based largely on pluralism ... complexity statistical physics modeling and analysis of financial markets References references ... month title Focus on Statistical Physics Modelling in Economics and Finance journal New Journal of Physics ... list q fin.ST recent Statistical Finance at arXiv.org Finance Category Mathematical finance Category ... more details
A statistical syllogism or proportional syllogism or direct inference is a non deductive syllogism . It argues from a generalization true for the most part to a particular case in contrast to inductive inference induction , which argues from particular cases to generalizations . Introduction Statistics Statistical syllogisms may use qualifier qualifying words like most , frequently , almost never , rarely , etc., or may have a statistical generalization as one or both of their premises. For example ... class and people is the reference class. Unlike many other forms of syllogism, a statistical syllogism ... fallacies can occur in statistical syllogisms. They are accident fallacy accident and converse accident .... A problem with applying the statistical syllogism in real cases is the reference class problem ... of attribute G may differ widely, how should one decide which class to use in applying the statistical syllogism? The importance of the statistical syllogism was urged by Henry E. Kyburg, Jr. , who argued ... in statistics is often justified using a statistical syllogism, in such words as Were this procedure ... samples to the confidence we should have in the particular sample involves a statistical syllogism ... 70a4 7, other examples in J. Franklin, The Science of Conjecture Evidence and Probability Before ... the majority rule to resolve cases of doubt. ref Franklin, Science of Conjecture , 172 5. ref ... often intuitive of the frequencies of the events insured against, which involves an implicit use of a statistical ... confidently to an individual patient with the disease. The Problem of Induction The statistical syllogism ... to the problem of induction . They put forward the argument, which has the form of a statistical syllogism ... this statistical syllogism, that the population is all or nearly all white. That is an example of inductive reasoning. Legal examples Statistical syllogisms may be used as legal evidence but it is usually .... The rodeo operator sues a random attendee for non payment of the entrance fee. The statistical ... more details
See also Pattern recognition In statistics , Statistical classification is the problem of identifying the statistical population sub population to which new observations belong, where the identity of the sub population is unknown, on the basis of a training set of data containing observations whose sub population is known. Thus the requirement is that new individual items are placed into groups based on quantitative information on one or more measurements, traits or characteristics, etc. and based on the training set in which previously decided groupings are already established. The problem here may be contrasted with that for cluster analysis , where the problem is to analyse a single data set ... needs to be judged on the basis of the statistical or probabilistic properties of the overall population from which future observations will be drawn. Frequentist procedures Early work on statistical ... problems , Annals of Eugenics , 7, 179&ndash 188 ref ref Fisher R.A. 1938 The statistical utilization ... to a new observation. ref name G1977 Gnanadesikan, R. 1977 Methods for Statistical Data Analysis of Multivariate ... rule should be linear . ref name G1977 ref Rao, C.R. 1952 Advanced Statistical ... Statistical Analysis , Wiley. ref several classification rules can be derived based on slight different ... density estimation Use for statistical classification Kernel estimation k nearest neighbor algorithm ... still more an art than a science. The measures precision and recall are popular metrics used to evaluate ... of these it is employed as a data mining procedure, while in others more detailed statistical modeling ... identification Biological classification Statistical natural language processing Document classification ... Statistical Pattern Recognition Toolbox for Matlab . http sites.google.com site tooldiag TOOLDIAG ... suite jw PAL Classification suite written in Java. DEFAULTSORT Statistical Classification Category Machine learning Category Classification algorithms Category Statistical classification ar ... more details
Unreferenced date October 2007 In statistics , for example in statistical quality control , a statistical assembly is a collection of parts or components which makes up a statistical unit . Thus a statistical unit, which would be the prime item of concern, is made of discrete components like organs or machine parts. The reliability of the statistical unit is, in part, determined by the reliability of the components in the statistical assembly, and by their interactions. Much of the observation of a statistical assembly requires special preparation of the unit, which demands that the intervention must not prejudice the observations. A simple version of this kind of research uses the stimulus response model . In other contexts, statistical assembly refers to the process of constructing a manufactured item which must be carefully specified to contain given amounts of nonuniformity within it. External links http adcats.et.byu.edu ADCATS Theory AutoCAD Analyzer 1 2D Overview 1 2D Overview .html Category Statistical terminology Category Quality control Category Survival analysis statistics stub ... more details
Statistical mechanics or statistical thermodynamics ref group note The terms statistical mechanics and statistical thermodynamics are used interchangeably. Statistical physics is a broader term which includes statistical mechanics, but is sometimes also used as a synonym for statistical mechanics ref ... of a large number of particles . Statistical mechanics provides a framework for relating the microscopic ... and quantum mechanical description of statistics and mechanics at the microscopic level. Statistical ... advantage of statistical mechanics over classical thermodynamics . Both theories are governed by the second ... only be known empirically, whereas in statistical mechanics, it is a function of the distribution of the system on its micro states. Statistical mechanics was initiated in 1870 with the work of Austrian ... of statistical thermodynamics section 1.2 ref Boltzmann s original papers on the statistical ... Academy and other societies. The term statistical thermodynamics was proposed for use by the American ... to Gibbs, the term statistical , in the context of mechanics, i.e. statistical mechanics, was first ... seem a more appropriate term, but statistical mechanics is firmly entrenched. ref cite book title ... page 174 url http books.google.com books?id zmwEfXUdBJ8C&pg PA174 ref Statistical mechanics Overview The essential problem in statistical thermodynamics is to calculate the distribution of a given amount of energy E over N identical systems. ref cite book author Schrodinger, Erwin title Statistical ... ref The goal of statistical thermodynamics is to understand and to interpret the measurable macroscopic .... Two central quantities in statistical thermodynamics are the Boltzmann factor and the Partition function statistical mechanics partition function . Fundamentals Central topics covered in statistical thermodynamics include Microstate statistical mechanics Microstates and configurations Boltzmann distribution law partition function statistical mechanics Partition function , Configuration integral ... more details
The power of a Statistical hypothesis testing statistical test is the probability that the test will reject ..., the concept of power is used to make comparisons between different statistical testing procedures for example, between a parametric and a nonparametric test of the same hypothesis. Background Statistical test s use data from Sampling statistics sample s to assess, or make statistical inference inferences about, a Statistical population population . In the concrete setting of a two sample comparison ... to them, and the mean score of one group is compared to that of the other group using a statistical ... which is known as a Type I error , or false positive . Factors influencing power Statistical power ... situation, but at a minimum, power nearly always depends on the following three factors the statistical ... in smaller samples. Increasing sample size is often the easiest way to boost the statistical power of a test. The precision with which the data are measured also influences statistical power. Consequently ... Guide to Effect Sizes An Introduction to Statistical Power, Meta Analysis and the Interpretation of Research ... interval to be less than a given value. Many statistical analyses involve the estimation of several ..., the only relevant power pertains to the single quantity that will undergo formal statistical ... variances, their powers will differ as well. Any statistical analysis involving multiple comparisons ... footnotes date January 2010 Notes references References Jacob Cohen statistician Cohen, J. Statistical ... Power Analysis for the Behavioral Science . 2010. ISBN 1 8487 2835 2. External links http www.indiana.edu statmath stat all power power.pdf Hypothesis Testing and Statistical Power of a Test http www.psycho.uni duesseldorf.de aap projects gpower G Power A free program for Statistical Power Analysis ..., the number of predictors, the anticipated effect size, and the desired statistical power level. http ... Explanations http effectsizefaq.com EffectSizeFAQ.com Statistics collection DEFAULTSORT Statistical ... more details
Statistical noise is the colloquialism for recognized amounts of unexplained variation in a sample statistics sample . See errors and residuals in statistics . Examples Gaussian noise External links cite web url http www.faqs.org faqs ai faq neural nets part3 section 2.html title How does noise affect generalization? date 2001 05 21 publisher faqs.org accessdate 2008 07 13 http www.wisegeek.com what is statistical noise.htm What is Statistical Noise? Category Noise Category Statistical deviation and dispersion statistics stub ... more details
Refimprove date December 2009 Statistical physics is the branch of physics that uses methods of probability theory and statistics , and particularly the Mathematics mathematical tools for dealing with large populations and approximations, in solving physical problems. It can describe a wide variety of fields with an inherently stochastic nature. Its applications include many problems in the fields of physics, biology , chemistry , neurology , and even some social sciences, such as sociology . Citation needed date September 2010 In particular, statistical mechanics develops the phenomenological results of thermodynamics from a probabilistic examination of the underlying microscopic systems. Historically, one of the first topics in physics where statistical methods were applied was the field of mechanics , which is concerned with the motion of particles or objects when subjected to a force. Statistical mechanics Statistical mechanics provides a framework for relating the microscopic properties ..., classical mechanics , and quantum mechanics at the microscopic level. Because of this history, the statistical physics is often considered synonymous with statistical mechanics or statistical thermodynamics . ref group note This article presents a broader sense of the definition of statistical physics ref A statistical approach can work well in classical systems when the number of degrees of freedom ... is not possible, or not really useful. Statistical mechanics can also describe work in non linear ... s , or plasma physics . Although some problems in statistical physics can be solved analytically using ... computers to simulate or approximate solutions. A common approach to statistical problems is to use a Monte Carlo simulation to yield insight into the dynamics of a complex system. See also Statistical ensemble mathematical physics Statistical ensemble Statistical field theory Mean sojourn time Dynamics ... Reflist group note References Reflist DEFAULTSORT Statistical Physics Categories Category Statistical ... more details
Infobox Software name Statistical Lab screenshot Deleted image removed Image statlab.jpg 250px caption The Statistical Lab Statistiklabor developer Freie Universit t Berlin latest release version 3.5.0.1 3.7 Beta latest release date 12 November 2007 operating system Microsoft Windows XP Windows XP , Microsoft Windows 2000 Windows 2000 genre Statistics Statistical analysis license GPL for non commercial users website http www.statistical lab.de The computer program Statistical Lab Statistiklabor is an explorative and interactive toolbox for statistical analysis and visualization of data. It supports educational applications of statistics in business sciences , economics , social sciences and humanities . The program is developed and constantly advanced by the Center for Digital Systems of the Free University of Berlin . Their website states that the source code is available to private users ... a private user who already has a copy any of their employees will do . Simple or complex statistical problems can be simulated, edited and solved individually with the Statistical Lab. It can be extended ... of underlying data. The Statistical Lab is the successor of Statistik interaktiv . In contrast to the commercial SPSS the Statistical Lab is didactically driven. It is focused on providing facilities for users with little statistical experience. It combines data frames, contingency tables ... calculations, the Statistical Lab uses the Engine R programming language R , which is a free implementation ... en index.html Homepage of the Statistical Lab in English http tutorials.statistiklabor.de Statistical Lab Tutorial for newbies English versions available http forum.statistiklabor.de forum for Statistical Lab users bilingual English and German http statistiklabor.tigris.org Tigris.org Source Code of the Statistical Lab discontinued, source code now available in the download area of the main ... berlin.de Homepage of the Center for Digital Systems Category Statistical software Category Windows ... more details
A statistical consultant provides statistical advice and guidance to clients interested in making decisions through the analysis or collection of data. Clients often need statistical advice to answer questions in business , medicine , biology , genetics , forestry , agriculture , fisheries , wildlife management , psychology , law , industry . The role of the statistical consultant varies from project to project, and can include any or all of the following design of experiments and research studies plotting data measurement instruments choosing, constructing & analyzing determination of adequate sample size to detect a hypothesized effect determination of an adequate Sampling statistics sampling procedure for a study, statistical survey survey or experiment supervision of data collection to ensure elements of the population statistics population are being sampled correctly statistical analyses e.g., analysis of variance , Regression analysis regression , etc. of data to address research hypotheses the write up of statistical results for grant proposals, manuscripts, professional conferences, or other presentations. Many university universities run statistical consulting services for researchers and students within their institution, and some also offer external consulting on commercial terms. There are also many private statistical consulting firms that work with companies and individuals. See also Statistician Management consulting List of University Statistical Consulting Centers References Boen, J. R., & Zahn, D. A. 1982 . Human Side of Statistical Consulting. Wadsworth Publishing Company. Cabrera, J., McDougall, A. 2002 . Statistical Consulting. Springer. Derr, J. 1999 . Statistical Consulting A Guide to Effective Communication. Duxbury Press. Hand, D. J., & Everitt, B.S. 1987 . The Statistical Consultant in Action. Cambridge University Press. Ad r, H.J., Mellenbergh ... of Statistical Consultants provided by the Royal Statistical Society No More Links PLEASE BE CAUTIOUS ... more details
Orphan date February 2009 A statistical database is a database used for statistics statistical analysis purposes. It is an OLAP instead of OLTP system, although this term precedes that modern decision, and classical statistical databases are often closer to the relational model than the multidimensional database multidimensional model commonly used in OLAP systems today. Statistical databases often incorporate support for advanced statistical analysis techniques, such as correlations, which go beyond SQL . They also pose unique security concerns, which were the focus of much research, particularly in the late 1970s and early to mid 1980s. Security in statistical databases In a statistical database, it is often desired to allow query access only to aggregate datas, not individual records. Securing such a database is a difficult problem, since intelligent users can use a combination of aggregate queries to derive information about a single individual. Some common approaches are only allowing aggregate queries SUM, COUNT, AVG, STDEV, etc. rather than returning exact values for sensitive data like income, only return which partition it belongs to e.g. 35k 40k return imprecise counts e.g. ... stalled reference 3 below showed that, in general, securing statistical databases was an impossible ... so tightly as to be incapable of abuse, they would then be useless for practical statistical purposes. To quote The conclusion is that statistical databases are almost always subject to compromise. Severe restrictions on allowable query set sizes will render the database useless as a source of statistical ... trier.de ley db conf ssdbm Statistical and Scientific Database Management SSDBM An important ... E. Denning, Secure statistical databases with random sample queries, ACM Transactions on Database ... de Jonge, Compromising statistical databases responding to queries about means, ACM Transactions on Database ..., Jan Schl rer, A fast procedure for finding a tracker in a statistical database, ACM Transactions ... more details
Statistical fluctuations are fluctuations in quantities derived from many identical random processes. They are fundamental and unavoidable. It can be proved that the relative fluctuations reduce as the square root of the number of identical processes. Statistical fluctuations are responsible for many results of statistical mechanics and thermodynamics , and phenomena such as shot noise in electronics. Description When a number of random processes occur, it can be shown that the outcomes fluctuate vary in time and that the fluctuations are proportional to the square root of the number of processes. Examples As an example that will be familiar to all, if a fair Coin flipping coin is tossed many times and the number of heads and tails counted, the ratio of heads to tails will be very close to 1 about as many heads as tails but after only a few throws, outcomes with a significant excess of heads over tails or vice versa are common if an experiment with a few throws is repeated over and over, the outcomes will fluctuate a lot. An electric current so small that not many electrons are involved flowing through a p n junction is susceptible to statistical fluctuations as the actual number of electrons per unit time the current will fluctuate this produces detectable and unavoidable electrical noise known as shot noise . not a very good stub yet, but such an important phenomenon in all physics that it really needs an article Unreferenced date February 2011 No footnotes date February 2011 Category Statistical randomness Category Stochastic processes Category Statistical mechanics Probability stub Statistics stub ... more details
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