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Airline passengers arrive randomly and independently at the passenger screening facility at a major international airport....

Airline passengers arrive randomly and independently at the passenger screening facility at a major international airport. The mean arrival rate is 10 passengers per minute.

  1. What is the probability of no arrivals in a 1-minute period? If required, round your answer to six decimal places.


  2. What is the probability of 3 or fewer arrivals in a 1-minute period? If required, round your answer to six decimal places.


  3. What is the probability of no arrivals in a 18-second period? If required, round your answer to four decimal places.


  4. What is the probability of at least 1 arrival in a 18-second period? If required, round your answer to four decimal places.
Math   Statistics-And-Probability   
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