a university admissions office is studying indicators of high school students' eventual college performance measure (college gpa) by their high school grade point averages and high school class rank. the correlation coefficient between college gpa and high school rank is found to equal .60. the correlation coefficient between college gpa and high school gpa is .40. based on this information, which of the following is true? group of answer choices 40% of the variation in college gpa can be explained by high school gpa. we can determine from this information that college gpa and high school gpa have a positive relationship. 40% of the variation in college gpa can be explained by high school gpa and 60% of the variation in college gpa can be explained by high school rank. 60% of the variation in college gpa can be explained by high school rank.