The following shows the cost in Kenya Shillings and the total output in Kilogram for sugar
produced by a farmer
Cost 34 43 47 56 59 71 75 80 85 90
Output 13 17 22 28 31 34 33 37 36 39
Required:
(i) Fit a regression line of the cost on the output (2 marks)
(ii) Hence estimate the output when the cost is 40 (3 marks)
(iii) Calculate the coefficient of determination (3 mark