5 Suppose that 60 percent of customers at a McDonalds purchase a hamburger, and assume that the purchases of different customers are independent. a) What is the probability that at most 7 of the next 10 customers will order a hamburger?
b) What is the probability that exactly 6 of the next 10 customers will order a hamburger? (
c) There are 10 customers is line. Find the expected number of customers that will buy hamburgers. (
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