Please solve for 3

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 Ly =398 x2 = 4076640 Ly' = 21898 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