All software listed here is free and run under Macintosh, Windows,

General Analysis Programs | Power | Tables | Univariate Descriptive | Regression and Correlation | Curve Fitting | Distribution Free Tests

The R Project for Statistical Computing full featured, very powerful

Analysis Lab Basic analyses, good for teaching.

A nice collection of small programs for specific types of analyses.)

DataPlot Includes scientific visualization, statistical analysis, and non-linear modeling.

MacAnova Not just for Macs, and not just ANOVA

BrightStat Basic analyses including many non-parametric tests.

Statistics101 Resampling

Tetrad Causal ModelingSimple Interactive Statistical Analysis Many basic statistical tests.

Statistician Lite Many statistical tests using Excel.

Power analysis for numerous designs and statistics

John Pezzullo

Power analysis for ANOVA designs

by Michael Friendly

Statistical considerations for clinical trials and scientific experiments

by David Schoenfeld

Power and sample size page

by Russ Lenth

Binomial Distribution |
Normal Distribution |
t Distribution |
Chi Square Distribution |
F Distribution |

Online Statistics by David Lane and Joan Lu. | JavaScript program by John Pezzullo | JavaScript program by John Pezzullo | CGI program by Jan de Leeuw | JavaScript program by David Lane |

Java program by B. Narasimhan | Java program by David Lane | Java program by B. Narasimhan | Java program by B. Narasimhan | JavaScript program by John Pezzullo |

Java program by B. Narasimhan | Online Statistics by David Lane and others at Rice U. | JavaScript program by John Pezzullo | Java program by B. Narasimhan | |

JavaScript Program by David Lane |
Online Statistics by David Lane and others at Rice U. |

Many descriptive statistics and stem and leaf displays

by David Lane

Interactive histogram

by Webster West

Statiscope

by Mikael Bonnier

Ordinary least squares

by T. KirkmanRegressIt Excel add-in

by Bob Nau

Interactive 2-Dimensional and 3-Dimensional Data Modeling

by James Phillips

Mann-Whitney U/Wilcoxon Rank SumTop of page