In simple linear regression, the plot of residuals versus fitted values should:
A) be free of any patterns
B) appear as a random scatter of points about 0 on the vertical axis
C) approximately have the same vertical spread for all values
D) all of these
E) none of these

Question

In simple linear regression, the plot of residuals versus fitted values  should:
A) be free of any patterns 
B) appear as a random scatter of points about 0 on the vertical axis 
C) approximately have the same vertical spread for all values 
D) all of these 
E) none of these

Quizplus · Accepted Answer

The plot of residuals versus fitted values should be free of any patterns (choice A), with a random scatter of points about 0 on the vertical axis (choice B), and approximately have the same vertical spread for all values (choice C). Therefore, all of these choices are correct (choice D).

In Simple Linear Regression, the Plot of Residuals Versus Fitted