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Wessa.net offers free educational forecasting software (time series analysis) and statistics software.

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Internet Archive is a non-profit digital library offering free universal access to books, movies & music, as well as 150 billion archived web pages.

BioStat user-friendly biology and medicine oriented statistical software.basic statistics,determining descriptive statistics,normality tests,T-Test/Pagurova Criterion/G-Criterion,Fisher F-test,correlation coefficients (Pearson, Fechner) and covariati...

MathWorks is the world’s leading developer of technical computing software for engineers and scientists in industry, government, and education

A large collection of links to interactive web pages that perform statistical calculations

GraphPad Prism is a powerful combination of biostatistics, curve fitting (nonlinear regression) and scientific graphing in one comprehensive program. Easily organize, analyze and graph repeated experiments; pick appropriate statistical tests and inte...

SigmaZone.com offers software, consulting, and training in the fields of statistics, Six Sigma, and Design for Six Sigma (DFSS). Our affordable Six Sigma Software including Statistical Process Control (SPC) and Design of Experiments (DOE) Software wh...

OriginLab produces professional graphing and data analysis software for scientists and engineers. Our products are designed to be easy-to-use, yet have the power and versatility to provide for the most demanding user.