As in Exercise 3.1, Jack and Jill are indepen-dently struggling to pass their last (one) class required for graduation. Jack needs to pass Calculus III, but he only has probability 0.30 of passing. Jill needs to pass Advanced Pharmaceuticals, but she only has probability 0.46 of passing. They work independently. Let X = 0 if neither of them graduates, or X - 1 if exactly one of them graduate, or X = 2 if both of them graduate. Find the expected value of X.