We have given 5 students aptitude test marks and their statistically computed grades below. Marks Grade 85 Student 1 95 2 85 95 3 80 70 4 70 65 5 60 70 (i) (ii) [Points 20] We are interested to compute grades from given test marks using linear regression. Can you please estimate the line equation using the normal equation method? Please show the detailed computation of each step. Also, show the final line equation and its parameters. [Points 10] Predict grades for the following given student marks using your computed equation in step 1. Given marks [65, 75, 77, 83, 87] Activate Windows Go to Settings to activate Windows.