Statistical Applets

Two-Variable Statistical Calculator

Statisticians are often interested in changes in a variable, or relationships among several variables. This applet describes straight-line relationships between two variables using the methods of correlation and regression.

Choose a data set on the first tab below, then click the other tabs to view or manipulate the data, see summary statistics including the correlation and equation of the least-squares regression line, or view a scatterplot or residuals plot of the data.