The following data represent the price of a random sample of used Chevy Camaros, by age. Age,x (years) Price, y (dollars) Age, x (years) Price, y (dollars) 15,850 20,360 5 10,980 2 16,460 16,975 6 10,820 5 9,985 1 19,990 11,990 18,645 5 10,990 4 10,480 a. Find the correlation coefficient between age and price. b. Find the least-squares regression line treating age as the explanatory variable