Question

The average number of phone calls per minute coming into a switch board between 2.p.m and 4.p.m is 2.5. Determine the probability that during one particular minute there will be (i) 4 or fewer (ii) more than six calls.

Answer 1

Answer:

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Step-by-step explanation:

The average number of phone calls per minute received in between 2.30 and 4.30 pm is 2.5. What is the probability that during a particular minute there would be two phone calls e−2=0.3534 and e−0.5=0.60650. P(X=2)=e−2.5(2.5)22! 2).