Created by David Lane of Rice University, this is a collection of applets organized by subject of study and searchable. It contains applets for ANOVA, binomial distribution, central limit theorem, chi square, confidence...

This article, created by Dennis O. Chanter of Huntingdon Research Centre, provides fun, "real life" examples of various statistical concepts, which can enliven lecture and illustrate such concepts for better...

This page will calculate r_s , the Spearman rank- order correlation coefficient, for a bivariate set of paired XY rankings. As the page opens, you will be prompted to enter the number of items for which there are paired...

This tutorial, created by Thomas W. MacFarland of Nova Southeastern University, explains the theory and use of the Spearman's Rank-Difference Correlation Coefficient and demonstrates it with an example on exam scores,...

Residual plots and other diagnostics are important to deciding whether or not linear regression is appropriate for a set of data. Many students might believe that if the correlation coefficient is strong enough, these...