Assume a Poisson distribution.

May 21st, 2015
Price: $5 USD

Question description

Suppose that a bank has One Automatic Teller Machine. Customers arrive at the machine at rate of 20 per hour (5 per ¼ hour). Assume a Poisson distribution.

1.  What is the probability that 2 person will arrive in a 15 minute interval (1/4 hour) ?

2.  What is the probability that at least 5 person will use a teller machine in a 15 minute interval?

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(Top Tutor) Lakshmi Subramanian
School: UT Austin

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