A calculus instructor is interested in finding the strength of a relationship between the final exam grades of students enrolled in Calculus I and Calculus II at his college. The data (in percentages) are listed below. (20p) S Calculus I 88 78 62 75 95 91 83 86 98 Calculus II 81 80 55 78 90 90 81 80 100 a) Graph a scatter plot of the data. b) Find an equation of the regression line. c) Determine if there is a significant correlation between the data. Use a = 0.01. d) Predict a Calculus II exam score for a student who receives an 80 in Calculus I. Is your answer a valid prediction? A. 10 B.