HEATKEYS

Statistical resources for social scientists, including Z-test, Chi-square & T-test statistical calculators.

Web site for statistical computation; probability; linear correlation and regression; chi-square; t-procedures; t-tests; analysis of variance; ANOVA; analysis of covariance; ANCOVA; parametric; nonparametric; binomial; normal distribution; Poisson di...

Probability and Statistics, Hypothesis testing, online CDF and Quantile Calculator, Gamma function, Error function, Gaussian Distribution

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

Free Online Math Calculators and Converters. Mathematics Calculation is made easier.

Online calculators for advanced mathematical functions, with a clean interface for inputting matrices and sequences of arbitrary size and uploading Excel/CSV files. Topics: Statistics, Linear Algebra, Distance, Basic Math, Trigonometry, Probability d...

Statistics Online Computational Resource

Best-selling statistics software integrated into Microsoft Excel, for statistical analysis, exploration and clinical method validation. Download a free 30-day trial.

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...