Linear Regression Applet
Description
This applet allows a person to add up to 50 points onto its green viewing screen. After each point is added by clicking on the screen
with the mouse, a blue best fit line will be calculated by the computer. By clicking
on Show Best Fit, a
red line will also appear. This red line represents
a line passing through (Average x, Average y) with a slope, which can be altered by clicking the Left or Right buttons. The
slope of this line may also be changed by dragging the mouse either right or left.
The thermometer on the right measures how well the red line fits the data points. If the thermometer measures a good fit (that is, small error) then the red
line is a good fit to the data..
Simulation
Applet Source, Written by Nicholas Exner.