Statistics is a mathematical science pertaining to collection, analysis, interpretation, and presentation of data as well as drawing valid conclusions and making reasonable decisions on the basis of such analysis.
In a narrower sense the term is used to denote the data themselves or numbers derived from data as, for example, averages. Thus we speak of employment statistics, accident statistics, etc.
It is applicable to a wide variety of academic disciplines from the physical and social sciences to the humanities, as well as to business, government, medicine and industry.
More on [ Statistics ]
Pseudorandom Numbers :: Algorithms
Statistics :: Math
Probability :: Math
Demography and Population Studies :: Social Sciences
Methodology :: Social Sciences

Statistical Science Web - Hierarchical directory of resources of interest to statisticians with special attention to Australia.
Meta Description: [ The southern hemisphere directory of statistics and bioinformatics on the web. ]
Adaptive Designs - Describes adaptive statistical designs and their benefits, and some programs for optimizing and analyzing such designs.
Meta Description: [ Adaptive
sampling designs for efficient experiments, especially clinical
trials ]
Analysis of Multiple Informant Data - Statistical methodology for the analysis of multiple informants/sources with applications to child psychopathology and gerontology.
Biostatistics Resources on the World Wide Web - Links to departments, associations, data, software, teaching resources.
Calculation for the Sobel Test - Interactive calculator performs tests of mediation in path analysis or structural equation models.
Chance Database Welcome Page - This data base contains materials designed help teach a Chance course or a more standard introductory probability or statistics course.
Meta Description: [ Chance is a quantitative literacy course introducing
probability and statistics in the context of current news stories. ]
Chebyshev's Inequality - Chebyshev's inequality with one-tailed and unimodal versions, putting statistical limits on the dispersion of probability distributions.
Meta Description: [ Discussion and proof Chebyshev's inequality in statistics and
and a one-tailed version. By Henry Bottomley ]
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Common Distribution Calculators - Calculators, plotters, and random number generators for pdf and cdf of the common continuous and discrete probability distributions.
Effect Size Calculator - On-line calculator for Cohen's d and r, presented by Lee A. Becker.
Entropy in Science - Specializing in the uses of entropy in statistics and science.
Meta Description: [ The purpose of these pages is to promote the appreciation,understanding, and applications of entropy in its many forms. Here you will finda collection of links to on-line expository articles and textbooks concerning the role of entropy ininformation and coding theory, dynamical systems, the theo... ]
Experimental Designs, DOE - A collection of experimental designs that a statistical practicioner may find useful.
Free Statistics - An index of free statistical software, data and resources.
Meta Description: [ Free Statistical Software, Free Mathematical Software, Statistical Data ]
Glossary of Statistical Terms - Explains trade words used in the field. Includes resource links.
Interactive Statistical Calculations Page - Collection of over 300 links to web pages that perform statistical calculations.
IRT Tutorial - Item Response Theory (IRT) tutorial from the University of Illinois, Urbana-Champaign Psychology Department.
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Item Response Theory and Its Applications - Scientific resources for item response theory approaches to measurement.
Latent Class Analysis - Directory of software for this statistical technique for modeling unmeasured categorical variables.
Latent Class Analysis and Latent Class Models - Resource for applied researchers and statisticians interested in the statistical method, Latent Class Analysis.
Meta Description: [ Latent Class Analysis pages. A resource for researchers interested
in Latent Class Analysis (LCA) and Latent Class Models. ]
MediaChannel.org: Numbers Game - The media's use of statistics in a culture where public policy is often based on scientific findings is more than a topic for journalism-school debates. Links to in-depth articles from a variety of perspectives.
Meta-Analysis - Handbook for the understanding and practice of Meta-Analysis.
Meta Description: [ The handbook for the understanding and practice of Meta-Analysis. ]
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Modern Regression and Classification - 2 day course for overview of computer-based regression and classification.
Non Symmetrical Data Analysis - Discusses methods of how to use structured information for multi-dimensional data analysis. From the University of Naples.
Parrondo's Paradox - A site about Parrando's paradox: alternating two losing games yield a winning game.
Meta Description: [ This is the work that I have done with Brownian ratchets and Parrondo's games. ]
Power Analysis for ANOVA Designs - On-line demonstration which runs an SAS program that calculates power or sample size needed to attain a given power for one effect in a factorial ANOVA design.
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Power Calculator - Returns distribution values based on on-line user input for many common statistical distributions.
Protein Structure Theory Group - Analysis Tools - Online tool can be used to analyze frequency, equi-probability, general random, and point mutations.
Meta Description: [ check for equal distribution ]
Rainer's Home Page for Statisticians - Information and links on WWW servers in Statistics, mailing lists and newsgroups, statistical associations and departments, statistical software, miscellaneous, statistical quotes, and a directory of professional statisticians worldwide.
Research Randomizer - A free web-based service that offers instant random sampling and random assignment for researchers. Also has a user-friendly tutorial for students.
Meta Description: [ Research Randomizer -- A Free Tool for Instant Random Sampling and Assignment. ]
Second Moment - Academic research and resources for industry analysts and businesses interested in applying the latest statistical and analytical tools and technology.
Meta Description: [ Second Moment is a dynamic meeting place for academia and industry in the fields of applied statistics and analytics. It is a platform for showcasing cutting edge academic research and a resource for industry analysts and businesses interested in applying the latest statistical and analytical too... ]
SEMNET FAQ - Frequently asked questions about structural equation modeling.
Spatial Aggregation - A framework for organizing computations around image-like, analogue representations of physical processes in data interpretation and control tasks.
Spatial Statistical Sites Source - This site provides links to many pages with primary or secondary relevance to spatial statistics.
StatiBot - An online system for finding statistical tests that would best suited to a specific dataset.
Meta Description: [ StatiBot is your statistical wizard. The expert system helps you find the appropriate statistical test., StatiBot ist Ihr Statistik-Assistent. Das Expertensystem hilft Ihnen, den richtigen statistischen Test zu finden. ]
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Statistical Analysis - Principles of mixed model analysis. Includes discussion of REML estimation of variances, BLUEs and BLUPs, fixed and random effects, and inference space; with small examples.
Meta Description: [ Principles of mixed model analysis.
Includes discussion of REML estimation of variances, BLUEs and BLUPs,
fixed and random effects, and inference space; with small examples ]
500
Statistical Data Analysis - Covers time series analysis, popular distributions, and the computer implementations.
Statistical Inference on the TI-83/86/89 - Contains problems and solutions on general topics of probability distributions, confidence intervals, hypothesis testing, analysis of variance, and correlation analysis. Detailed survey sampling projects are also included.
Statistical Linkage Programs - Information about statistics for genetic analysis.
Statistical Methods for Rater Agreement - Resources for researchers who want to analyze data on agreement among raters or diagnostic methods. Includes raw agreement indices, kappa coefficient, weighted kappa, latent class and latent trait models, and tetrachoric and polychoric correlations.
Meta Description: [ Statistical Methods for Rater and
Diagnostic Agreement pages. A resource for researchers concerned with
the analysis of agreement data. Kappa coefficients, agreement indices,
latent class and latent trait models, tetrachoric and polychoric
correlation, odds-ratio statistics and other methods. ]
Statistical Review - Free formulae of rules for the expectation of mean, variance, covariance, correlation coefficient, proofs available for purchase.
Meta Description: [ Statistical review, proofs of formulas and rules for the mean, variance, covariance, correlation coefficient ]
Statistics Every Writer Should Know - Basic statistical concepts described in plain English. Designed for journalists or other beginners.
Meta Description: [ A simple guide to understanding basic statistics, for journalists and other writers who might not know math. ]
Statistics on the Web - Clay Helberg's annotated list of statistical method resources on the web.
Meta Description: [ CoreComm, Internet Service Provider offers unlimited Internet access for only $9.95 per month. Now surf up to 6x faster with SpeedStream! Our goal is to provide the industry's best value in Internet access - that means being the ISP with the most features at the lowest price! ]
Statistics Resources - Sidney Tyrrell's Resources' page, part of the National Grid for Learning.
Statistics Resources - A collection of resources: software, FAQs, papers, books, links. Ranges from elementary to advanced. Compiled by Stephen Soldz.
Meta Description: [ A collection of statistical resources gradually
accumulated by Stephen Soldz of the Boston Graduate School of Psychoanalysis. ]
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Statistics to Use - Online statistics demos.
Statistics.com - Searchable database of statistical information and data sources on the internet.
Meta Description: [ statistics.com is the leading provider of professional development courses in statistics. Online programs give you regular access to leading experts in statistics with courses that fit your budget and schedule. ]
Statoo Resource links - Directory of statistical links, organized by specialty.
Meta Description: [ Statoo Consulting is a software-vendor independent Swiss consulting firm specialized in statistical consulting and training, data analysis, data mining, analytical CRM and bioinformatics services. ]
The Chart of the Week - Graphical display of social, economic, and political statistical data
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The Interdisciplinary Inversion Group. - The focus of the research is on statistical aspects of inverse problems. Courses, publications and other resources.
The Internet Glossary of Statistical Terms - Glossary of terms organized according to learning order for those unfamiliar with the subject, and also an alphabetical list for already familiar with statistical procedure.
The World-Wide Web Virtual Library: Statistics - Well-organized, comprehensive list of web Statistics resources.
Virtual Laboratories in Probability and Statistics - Interactive, web-based resources for students and teachers of probability and statistics.
| A teacher created explanation covering fundamental counting principle, permutations, and ordering. For further ... | |
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