Created by Alan Heckert and James Filliben, this lesson, part of the National Institute of Standards and Technology (NIST) Engineering Statistics handbook, contains links to web pages which have tables of values for...

This chapter of the "Concepts and Applications of Inferential Statistics" online textbook, created by Richard Lowry of Vassar College, describes in detail the Kruskal-Wallis test, it's formulas, variables, and procedures...

Using cooperative learning methods, this activity helps students develop a better intuitive understanding of what is meant by variability in statistics. Emphasis is placed on the standard deviation as a measure of...

This article, created by Allen L. Shoemaker of Calvin College, describes a dataset on body temperature, gender, and heart rate. The data is taken from a paper in the "Journal of the American Medical Association" that...

Wolfram Research, the maker of the popular software Mathematica, recently added a comprehensive database of mathematical functions to its Web site. There are tens of thousands of formulas that can be browsed...