Ch 2 - 47E

Problem 47E Answer: Step1: We have Return to the credit card scenario of Exercise 12 (Section 2.2), and let C be the event that the selected student has an American Express card. In addition to P(A) = 0.6, P(B) = 0.4, and P(A B) = 0.3, P(C) = 0.2, P(A C) = 0.15, P(B C) = 0.1, and P(A B C) = 0.08. Our goal is to find, a. What is the probability that the selected student has at least one of the three types of cards b. What is the probability that the selected student has both a Visa card and a MasterCard but not an American Express card c. Calculate and interpret P(B | A) and also P(A | B). d. If