Problem 10 A Math teacher managed a survey among his students to determine the relationship between the time spent with computer games each day and their marks for the Math course. The results of the survey are given below. Students Time spent with computer games Marks for the Math course (x hours) (1%) 85 2 89 3 4 77 4 4 84 5 5 62 54 Consider: SSxx = 22.83, SSxy = -133.83, SSyy = 990.83 (a) Calculate the correlation coefficient, r. (b) Determine the formula for the line that best fits the above data. (c) If a student earns 80% for Math course, how many hours does he/she spend every day with computer games