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The average time it takes a salesperson to finish a sale on the phone is 7 minutes and is exponentially distributed. Find the probability that

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The average time it takes a salesperson to finish a sale on the phone is 7 minutes and is exponentially distributed. Find the probability that (a) less than 9 minutes pass before a sale is completed. (b) more than 14 minutes pass before a sale is completed. (c) between 9 and 14 minutes pass before a sale is completed. Round all answers to four decimal places. Get Help

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