Question

If you print the residuals for StudentSurvey.modelGPA, what will you see?

A) 3.158
B) for each participant in the study, the difference between his/her GPA and the mean GPA
C) for each participant in the study, the model (i.e. the mean) for GPA
D) the GPA of each participant in the study

Answer 1

B) For each participant in the study, the difference between his/her GPA and the mean GPA.

Explanation:

Residuals in a regression model represent the differences between the observed values (in this case, student GPAs) and the predicted values (the mean GPA predicted by the model). So, option B is the correct description of what you will see when you print the residuals.