### What is the probability of another arrival in next 10 minute

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##### Reference no: EM131248834

Problem Statement

A fast-food restaurant is interested in studying its arrival of customers. During the busy lunch period they have observed an average of 20 customers arriving per hour Poisson distributed.

a. If a customer has just entered the store, what is the probability of another arrival in the next 10 minutes?

b. What is the probability of two customers arriving in a five minute window?

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