In an electronic factory at Shah Alam, data was kept on the effect of training time on the time to perform a job on a production line. X is the amount of training (f) in hours and Y is the time to perform the task (u) in minutes. The probability distribution data is shown in Table Q1. a. Table Q1 X=t f(x,y) Total 1 2 3 5 0.05 0.10 0.16 0.31 Y=u 3 0.20 0.15 0.06 0.41 1 0.08 0.07 0.13 0.28 Total 0.33 0.32 0.35 1.00 Determine the value of means, x and Y. b. Calculate the expected value of E(XY). C. Determine the covariance of X and Y.