P rohlem 3- 1 7 (Algorithmic) Airline passengers arrive randomly and independently at the passenger screening facility at a major international airport. The mean arrival rate is 5 passengers per minute. a. What is the probability of no arrivals in a 1minute period? If required, round your answer to six decimal places. H b. What is the probability of 3 or fewer arrivals in a 1minute period? If required, round your answer to six decimal places. U c. What is the probability of no arrivals in a 15second period? If required, round your answer to four decimal places. H d. What is the probability of at least 1 arrival in a 15second period? If required, round your answer to four decimal places. U