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In: Statistics and Probability

A particular telephone number is used to receive both voice calls and fax messages. Suppose that...

A particular telephone number is used to receive both voice calls and fax messages. Suppose that 20% of the incoming calls involve fax messages, and consider a sample of 20 incoming calls. (Round your answers to three decimal places.)

(a) What is the probability that at most 5 of the calls involve a fax message?


(b) What is the probability that exactly 5 of the calls involve a fax message?


(c) What is the probability that at least 5 of the calls involve a fax message?


(d) What is the probability that more than 5 of the calls involve a fax message

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orchestra answered 1 year ago
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