A delicatessen is open 24 hours a day every day of the week. On the average, 21 orders are received by fax every two hours throughout the day. a. Find the probability that a faxed order will arrive within the next 6 minutes. b. Find the probability that the time between two faxed orders will be between 3 and 8 minutes. c. Find the probability that 15 or more minutes will elapse between faxed orders. . . . . . a. The probability that a faxed order will arrive within the next 6 minutes is (Round to four decimal places as needed.) b. The probability that the time between two faxed orders will be between 3 and 8 minutes is (Round to four decimal places as needed.) c. The probability that 15 or more minutes will elapse between faxed orders is (Round to four decimal places as needed.)