This site, created by the Department of Statistics at Yale University, gives an explanation, a definition and an example of inference for categorical data. Topics include confidence intervals and significance tests for...

This applet, created by McGraw-Hill Higher Education, is designed to help students understand how the sample size and probability of success affect the shape of the binomial distribution. It accompanies "Statistical...

This demonstration, by David M. Lane of Rice University, allows you to view the binomial distribution and the normal approximation to it as a function of the probability of a success on a given trial and the number of...

This page, created by Richard Lowry of Vassar College, generates a Poisson distribution, as approximated by the binomial. After clicking continue, users must enter the sample size (n>39) and probability of success...

This tool lets you calculate the probability that a random variable X is in a specified range, for a variety of probability distributions for X: the normal distribution, the binomial distribution with parameters n and p,...