This Java applet displays a scatterplot and one is asked to draw in regression line by hand. One can then compare this line to the best least squares fit. One can also guess the value of the Pearson’s correlation coefficient
The simulation and its associated questions can be used as either homework assignment or as an in-class activity for those classes with access to computers with Internet connection. It can also be used easily in courses that utilize a course management system. Students can work either in pairs or individually as they run the simulations and answer the questions.
Author: David Lane