This article, created by Robert W. Hayden of Plymouth State University, describes a dataset of days in office of United States Presidents with outliers that are not mistakes or unusually high or low observations. The...

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...

Created by Robert Jernigan of American University (Washington, D.C.), this article describes how to make a physical model of the normal distribution and use it to illustrate the concepts of sampling distributions,...

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 collection, created by John McClain of Cornell University, of macros for Microsoft Excel addresses numerous topics like decision trees, the Central Limit Theorem, queueing, critical path analysis, regression with...