SECTION A: STATISTICS Answer ALL questions. Write your answers in the spaces provided. 1. A company is introducing a job evaluation scheme. Points (x) will be awarded to each job based on the qualifications and skills needed and the level of responsibility. Pay (Ey) will then be allocated to each job according to the number of points awarded. Before the scheme is introduced, a random sample of 8 employees was taken and the linear regression equation of pay on points was y = 4.5x - 47 (a) Describe the correlation between points and pay. (1) (b) Give an interpretation of the gradient of this regression line. (1) (c) Explain why this model might not be appropriate for all jobs in the company. (1)