Customers arrive at a one-man barbershop according to a Poisson process with a mean inter-arrival time of 12 minutes. Customers spend an average of 10 minutes in the barber's chair, what is the probability that more than 3 customers are in the system?

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A: From the provided information, Sample size (n) = 49 Sample mean (x̄) = 592 Sample standard deviation…

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A:

Q: A

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