The actual delivery time from a pizza delivery company is exponentially distributed with a mean of 24 minutes. a. What is the probability that the delivery time will exceed 29 minutes? b. What proportion of deliveries will be completed within 19 minutes? a. The probability that the delivery time will exceed 29 minutes is (Round to four decimal places as needed.) b. The proportion of deliveries that will be completed within 19 minutes is (Round to four decimal places as needed.)