Suppose that when a company has 5 customer service reps (CSRs) in its call centre at any

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Suppose that when a company has 5 customer service reps (CSRs) in its call centre at any given time, they collectively serve 40 customers per hour on average.
If there are 5 CSRs, what is the probability that a customer waits more than 2 minutes in total after already waiting 30 seconds?
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Elementary Statistics

ISBN: 9780321225979

3rd Canadian Edition

Authors: Mario F. Triola

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