. Suppose an individual is randomly selected from the population of all adult males living in the USA. Let A be the event that the selected individual is over 6 ft in height, and let B be the event...

. Suppose an individual is randomly selected from the population of all adult males living in the

USA. Let A be the event that the selected individual is over 6 ft in height, and let B be the event

that the selected individual is a professional basketball player. Which do you think is larger,

P(A|B) or P(B|A)? Why?

. Return to the credit card scenario of Exercise 14, where A ¼ {Visa}, B ¼ {MasterCard},

P(A) ¼ .5, P(B) ¼ .4, and P(A \ B) ¼ .25. Calculate and interpret each of the following

probabilities (a Venn diagram might help).

(a) P(B|A)

(b) P(B0|A)

(c) P(A|B)

(d) P(A0|B)

(e) Given that the selected individual has at least one card, what is the probability that he or

she has a Visa card?