This page from the Analytical Sciences Digital Library provides a good introduction to data analysis in analytical chemistry. Topics include means, standard deviation, and deciding if two results are different at some...

This tutorial, authored by Jay Hill of the University of Illinois at Urbana-Champaign, introduces mean, median, mode, variance, and standard deviation using sports statistics from the Internet and class-generated...

This site, created by Michelle Lacey of Yale University, gives a definition and an example of numerical summaries. Topics include: mean, median, quantiles, variance, and standard deviation. While brief, the site is...

This site provides a PowerPoint presentation, created by Dr. Elizabeth Garrett-Mayer of Johns Hopkins University, of a lesson and examples of point estimation, odds ratios, hazard ratios, risk differences and precision....

This applet simulates a two-condition experiment. You specify the number of subjects per sample (n), and the population means for each condition (Mean A and Mean B). You can also specify the correlation between the two...