With solution

0 Exercise 1. Calculate for the mean or expected value, variance and standard deviation of each random distribution. Y 1 2 3 4 5 13'(Y 0. 0. 0.. 0. 0. ) 22 31 15 10 22 Y 1 2 3 4 5 P(Y 0 0 0 0 0 ) 40 45 05 05 05