Based on the following residual plot, which condition / assumption for linear regression is not satisfied?
A) Linearity.
B) Quantitative Variables.
C) Equal Spread.
D) Outlier.
E) None of the above; all conditions are satisfied.

Question

Based on the following residual plot, which condition / assumption for linear regression is not satisfied? 
A) Linearity. 
B) Quantitative Variables. 
C) Equal Spread. 
D) Outlier. 
E) None of the above; all conditions are satisfied.

Quizplus · Accepted Answer

The residual plot shows a pattern where the spread of residuals is increasing as the predicted values increase. This violation of equal spread assumption is also known as heteroscedasticity.

Based on the Following Residual Plot, Which Condition / Assumption