This site, presented by the Department of Statistics at Yale University, gives an explanation, a definition and an example of probability models. Topics include components of probability models and the basic rules of...

This site, presented by the Department of Statistics at Yale University gives an explanation, a definition and an example of random variables including discrete and continuous. It also defines a density curve. Overall,...

This compendium, created by Dr. Michael P. McLaughlin, describes distributions appropriate for the modeling of random data. The number of distributions, fifty-six, is large, including: continuous distributions (30),...

This website, created Richard Lowry of Vassar College, allows the user to provide two independent samples of sizes n_a and n_b, this page will estimate the significance of the difference between the means of the samples,...

This site, presented by the Department of Statistics at Yale University, gives an explanation of, a definition for and an example of sample means. Topics include mean, variance, distribution, and the central limit...