Find en the expected number of voice


In an experiment to monitor two calls, the PMF of N, the number of voice calls, is

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(a) Find E[N], the expected number of voice calls.

(b) Find E[N2], the second moment of N.

(c) Find Var[N], the variance of N.

(d) Find σN , the standard deviation of N.

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Basic Computer Science: Find en the expected number of voice
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