Questions:

Suppose we predict SAT score based on parent's education and parent's income. If we run the regression again but also include the student's GPA as an additional predictor: choose all options that apply C] a) The R2 for the regression will increase. C] b) The adjusted R2 for the regression will increase. C] c) None of the options are correct C] d) The adjusted R2 for the regression may decrease C] e) The R2 for the regression will stay the same