1. A city law-enforcement official has stated that 20% of the items sold by pawn shops within the city    have been stolen. Ralph has just purchased 4 items from   one of the city's pawn shops. Assuming that the official is correct, and for x 5 the number of Ralph's purchases that have been stolen, determine the following:

a. P(x 5 0)

b.   P(2 # x)

c. P(1 # x # 3)

d.   P(x # 2)

2. The regional manager in Exercise 6.10 plans to evaluate the speed of service at five local franchises of the restaurant. For the five servers, determine the probability that

a. none will receive a movie coupon.

b. two of the five will receive a coupon.

c. three of the five will receive a coupon.

d. all five will receive a coupon.