This site gives a definition and an example of scatterplots. Topics include positive and negative association.
- Prof Dev
The fifth chapter of an online Introduction to Biostatistics course. Three sets of lecture notes are provided. Additionally, links for additional reading and exercises with solutions are provided. A link is also given for a related statistical applet on the normal distribution.
This page will calculate the intercorrelations (r and r2) for up to five variables, designated as A, B, C, D, and E.