Use Sophia to knock out your gen-ed requirements quickly and affordably. Learn more
×

Residuals

Author: Jonathan Osters

Source: Graphs created by Jonathan Osters

Video Transcript
Terms to Know
Residual

The difference between the actual value of the response variable for a particular data point and its predicted value from the regression line.

Residual Plot

A scatter plot that plots Residuals vs. explanatory variable, as opposed to response variable vs. explanatory variable. It can be used to assess the fit of a line.

Formulas to Know
Residual

r e s i d u a l space equals space y space minus space y with overbrace on top space equals space left parenthesis A c t u a l space R e s p o n s e right parenthesis thin space minus space left parenthesis P r e d i c t e d space R e s p o n s e right parenthesis