Telemarketing. Telephone marketers and opinion polls use random digit dialingequipment

Chapter 0, Problem 12.29

(choose chapter or problem)

Telemarketing. Telephone marketers and opinion polls use random digit dialingequipment to call residential telephone numbers at random. The polling firmZogby International reports that just 20% of calls reach a live person.6 Calls areindependent.(a) A telemarketer places 5 calls. What is the probability that none of themreaches a person?(b) Only 8% of calls made to residential numbers in New York City reach aperson. What is the probability that none of 5 calls made to New York Cityreaches a person?

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