Week 3 Reflection (Ch 5- two parts) Name: Answer each of the following questions in complete sentences and relate your answers to the context of the problem. Note: You need to show your work. Use...

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Week 3 Reflection (Ch 5- two parts) Name: Answer each of the following questions in complete sentences and relate your answers to the context of the problem. Note: You need to show your work. Use Excel for your calculations, be sure to upload your well-documented Excel files so that I can check your work, but you still need to answer the questions IN THIS FILE! Part A: A university found that 20% of its students withdraw without completing the introductory statistics course. Assume that 20 students registered for the course. 1. Compute the probability that 2 or fewer will withdraw. 2. Compute the probability that exactly 4 will withdraw. 3. Compute the probability that more than 3 will withdraw. 4. Compute the expected number of withdrawals. Part B: 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. Compute the probability of no arrivals in a one-minute period. 2. Compute the probability that three or fewer passengers arrive in a one-minute period. 3. Compute the probability of no arrivals in a 15-second period. 4. Compute the probability of at least one arrival in a 15-second period.