3. Listed below are amounts of court fine revenue and salaries paid to town justices. [12 marks] a) Calculate the linear correlation coefficient. Court income $000s Justice salary $000s (X (y 32 18 65 30 111 25 154 26 252 61 272 46 404 44 1131 56 1567 92 x = 3988 Ly = 398 x2 = 4076640 y2 = 21898 MM n = 9 xy = 262465 (b) Determine the equation of the regression line of the form y' = a + bx (c) Use your equation to determine the predicted Justice salary for a court income of $300000