Dr. Broverman,

I have a question from your manual.

Let X be a Poisson random variable with E(X)= Ln2. Calculate E[cos(22/7 X)]. How did you get Sum of x to infinity cos(22/7x)= Sum of x to infinity (-1)^x? Would you mind to explain? Ans (1/4)

Thanks

Rup

I have a question from your manual.

Let X be a Poisson random variable with E(X)= Ln2. Calculate E[cos(22/7 X)]. How did you get Sum of x to infinity cos(22/7x)= Sum of x to infinity (-1)^x? Would you mind to explain? Ans (1/4)

Thanks

Rup

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