Possible values of X, the number of components in a system submitted for repair that must be replaced, are 1, 2, 3, and 4 with corresponding probabilities 0.15, 0.35, 0.35, and 0.15, respectively. a. Calculate E(X) and then E(5-X)
b. Would the repair facility be better off charging a flat fee of $75 or else the amount $[150/(5-X]?