Question: 7.44 The article Should You Report That Fender-Bender? (Consumer Reports, 2013:15) reported that 7 in 10 auto accidents involve a single vehicle. Suppose 15 accidents

7.44 The article “Should You Report That Fender-Bender?”

(Consumer Reports, 2013:15) reported that 7 in 10 auto accidents involve a single vehicle. Suppose 15 accidents are randomly selected. (Hint: See Examples 7.19 and 7.20.)

a. What is the probability that exactly four involve a single vehicle?

b. What is the probability that at most four involve a single vehicle?

c. What is the probability that exactly six involve multiple vehicles?

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