Question 15 0/2 pts 5 99 Annual high temperatures in a certain location have been tracked for several years. Let X represent the year and Y the high temperature. Based on the data shown below, calculate the regression line (each value to two decimal places). y = X + X y 3 26.55 4 31.3 5 34.35 6 35.8 7 36.65 8 42.1 9 42.45 10 44.6 11 48.25 12 52.5 13 56. 15 14 56.9 15 58.95 16 6