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At a telephone enquiry system the numb...

At a telephone enquiry system the number of phone calls regarding relevant enquiry follow Poisson distribution with an average of 5 phone cells during 10 - minute time intervals . The probability that there is at the most one phone call during a 10 - minute time period is :

A

`6/5`

B

`5/6`

C

`6/55`

D

`6/(e^(5))`

Text Solution

Verified by Experts

The correct Answer is:
D
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