The variable 1 Point Grading comment: Which variable is the correct response variable? Choice 1 of 4:"rate" (6-year graduation rate) Choice 2 of 4:"SAT" (median SAT score of students accepted to the college) Choice 3 of 4:"expenses" (student-related expense per full-time student (dollars)) Choice 4 of 4:"students" (coded 0 if college has both males and females, OR 1 if college has only males or only females)