Created by David Lane of Rice University, this applet simulates experiments using 2 x 2 contingency tables. You specify the population proportions and the sample size and examine the effects on the probability of...

This online resource is intended to help students understand concepts from probability and statistics and covers many topics from introductory to advanced. You can follow the progression of the text, or you can click on...

This page, created by Ino Dinov of the University of California, Berkeley, provides links to distribution calculators, conceptual demonstration applets, statistical tables, online data analysis packages, function and...

This resource, created by author David M. Lane, defines and explains Chi square. It takes the user through 5 different categories: testing differences between p and pi, more than two categories, chi-square test of...

The applet allows users to sample from a normal distribution or from a uniform distribution. It shows the expected values and the observed values and computes the deviation. Then, a chi-square test shows if the...