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The actual delivery time from a pizza delivery company is exponentially distributed with a mean of 26 minutes a. What is the probability that

The actual delivery time from a pizza delivery company is exponentially distributed with a mean of 26 minutes a. What is the probability that the delivery time will exceed 31 minutes? b. What proportion of deliveries will be completed within 21 minutes? a. The probability that the delivery time will exceed 31 minutes is (Round to four decimal places as needed.)

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