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The number of calls received by an office on Monday morning between 8:00 AM and 9:00...

The number of calls received by an office on Monday morning between 8:00 AM and 9:00 AM has a mean of 5. Calculate the probability of getting no more than 1 call between eight and nine in the morning. Round your answer to four decimal places.

Math   Statistics-And-Probability   
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Answer #1

Solution:

Given:

x = The number of calls received by an office on Monday morning between 8:00 AM and 9:00 AM has a mean of 5.

thus x follows Poisson distribution with parameter

We have to find  the probability of getting no more than 1 call between eight and nine in the morning.

that is find:

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