Web Links

Applet Demonstrating Restricted Range on Correlation by Rice Virtual Lab
(http://www.ruf.rice.edu/~lane/stat_sim/restricted_range/index.html)

Demonstration of the effect of restricted range. Students pick data sets and the scatterplot, r, regression equation, and standard error of the estimate are displayed.

Guessing Correlations by John Mardin
(http://www.stat.uiuc.edu/~stat100/java/GCApplet/GCAppletFrame.html)

Match up scatterplots with correlation coefficients. Instructors that would like to set up a group so that their students can compete among themselves can send a request to stat100.

The Karl Pearson Reader's Guide
(http://www.economics.soton.ac.uk/staff/aldrich/kpreader.htm)

By John Aldrich, University of Southampton, Southampton, UK. This site is focused on the life and work of Karl Pearson.

Interact With a Scatterplot - See Different Correlation Coefficients
(http://noppa5.pc.helsinki.fi/koe/corr/cor7.html)

This is a great way to see what different correlation coefficients look like on a scatterplot. You select the coefficient and the applet changes the scatterplot to match your selection.

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