Question 8.52

21. Return to the probability model that you created for Workers and Vehicles in Exercise 12. Suppose a random sample of two U.S. workers is chosen.

  1. What is the probability that they both live in households where the number of vehicles exceeds the number of workers in the household?
  2. What is the probability that they both live in households where the number of vehicles does not exceed the number of workers in the household?

392

21.

Let , and

(a)

(b)