Question
In a post office, customers visit at a rate of 20 customers per hour. Assume the number of visiting customers has an approximately Poisson distribution.
In a post office, customers visit at a rate of 20 customers per hour. Assume the number of visiting customers has an approximately Poisson distribution.
(a) What is the probability that there are exactly 5 visiting customers in a given 10 minutes?
(b) Assume the office open every day at 8:00 am. Use exponential distribution to find the probability that the first customer comes after 8:05 am?
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Chance And Chaos
Authors: David Ruelle
1st Edition
069121395X, 9780691213958
