If u could please help me with parts a-f I'm just not understanding it. Thanks

2. For a given regression problem, our predictor variable is SAT score. We wish to use this for a response variable of freshman GPA at Edinboro University. The regression equation that we obtain is given by: Y = 1.2867 + 0.001365 * X. (a) Variable X represents ( b ) Variable Y represents (C) An increase in 100 of SAT score corresponds to an average increase in GPA by about how much? (d) With only this information available, on average, what GPA would you expect a student with an SAT score of 1040 to receive? (e) With only this information available, if a student received a 2.61 freshman GPA, what is your best guess of his or her SAT score (based on the regression line)? (f ) If the student discussed in part (d) actually had a 2.54 GPA for the semester, calculate and interpret the residual for this student