For the following data...

x. y

7 75

8 77

35 100

x = hours spent playing video games

y = exam score

mean for x = 16.667; standard deviation =15.885

mean for y = 84; standard deviation = 13.892

Based on the above info, find the values for b and a, for your regression equation predicting y from x:

y = b(x) + a