The following residuals plot indicates ___.
A)a nonlinear relation
B)a nonconstant error variance
C)the simple regression assumptions are met
D)the sample is biased
E)the sample is random

Question

The following residuals plot indicates ___. 
A)a nonlinear relation 
B)a nonconstant error variance 
C)the simple regression assumptions are met 
D)the sample is biased 
E)the sample is random

Quizplus · Accepted Answer

The residuals plot shows a pattern where the spread of residuals is nonconstant across the range of predicted values. This indicates heteroscedasticity, which violates the assumption of constant error variance. Therefore, option B is the best choice. The other options cannot be determined from the residuals plot alone.

The Following Residuals Plot Indicates ___