Interactive Applets – Linear Regression
Try these interactive demonstrations.
To see the effect of outliers on a regression equation, use the applet introduced earlier. Draw points on the graph, add the regression line and then add an outlier or move an observation to see how the regression line changes.
Interactive Applet: Effect of Outliers
Here is another similar applet that can be used to illustrate outliers and guessing lines of best fit.
Interactive Applet: Simple Linear Regression
Here is an interactive demonstration from the Rosman/Chance collection which has extensive options and illustrates many ideas about linear regression and correlation.
Interactive Applet: Analyzing Two Quantitative Variables
And, remember the two-variable calculator we introduced earlier.
Interactive Applet: Analyze Two Quantitative Variables with this Calculator
This document is linked from Linear Relationships – Linear Regression.