Shindy is an undergraduate business major studying at a local college. She wants to conduct a study on Grade Point Average (GPA) and the level of income a person can earn in the future. Below are the data that she managed to collect from business school graduates. GPA Income (RM'000) 3.2 36 3.0 32 2.8 30 3.5 39 3.8 44 3.1 35 2.5 24 3.6 47 3.3 37 (a) Calculate the correlation coefficient and comment. (6 marks) (b) Calculate the coefficient of determination and comment. (4 marks) (c) Determine the least squares regression equation of income on GPA (4 marks) (d) Interpret the gradient of the regression equation. (2 marks) (e) Estimate the income when the GPA is 2.9. Comment on the reliability of the estimate. (4 marks)