A college administrator wants to be able to predict a studen
A college administrator wants to be able to predict a student\'s final college GPA based on the student\'s SAT score. She looks through past SAT scores and final GPAs for 50 students and finds that the two are correlated, r = +0.50. Sarah, an incoming student, scored 480 on the SAT. The college administrator wants to predict what her final GPA will be in college. The administrator finds that a = 1.53 and b = 0.00269. You need to figure out the predicted final GPA for Sarah. Y = bX + a When Sarah finished college, her final GPA was 3.50. Were you surprised that there was a large discrepancy between her predicted final GPA and her final GPA? Explain. Figure out where the regression line should go in the scatterplot and then draw the regression line on the scatterplot. Please pay attention that the x and y axes do not start at 0.
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