What is R-Squared?

Drag the red point labeled "Drag Me." As this point moves, the sum of the squared residual errors changes, becoming minimum as the line [math]y = \bar{y}[/math] is rotated onto the Least Squares Regression Line. The percentage decrease in the sum of the squared residual errors between the line [math]y = \bar{y}[/math] and the Least Squares Regression Line is the value of [math]R^2[/math] (as a percentage).

 

Steve Phelps

 
Resource Type
Activity
Tags
Target Group (Age)
3 – 19+
Language
English
 
 
GeoGebra version
5.0
Views
2344
Contact author of resource
 
 
© 2024 International GeoGebra Institute