Refer to Exercise 4.39. Express the following events in set notation and find their probabilities. (a) B occurs and A does not occur. (b) N either A nor B occurs. (c) Either A occurs or B does not occur. Data from Exercise 4.39: Consider the two events. A = [Obese] B = [Male] for persons in the age group 20-39 years old. A recent survey by the National Center for Health Statistics suggests the probabilities P(A) = .36 P(B) = .50 P(AB) = .18 for a randomly selected person.