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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 6. Calculate the probability of getting at least 1 call between eight and nine in the morning. Round your answer to four decimal places.

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Given that:-

The number of calls received by an office on Monday morning between 8:00 AM and 9:00 AM has a mean of 6. Calculate the probability of getting at least 1 call between eight and nine in the morning.

use Poisson distribution

Probability of getting atleast 1 call between eight and nine in the morning is

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