Question

Let f(x) = e^-2(2^x)/x! for x= 1,2,3,... and 0 otherwise. Show that f(x) is a pdf....

Let f(x) = e^-2(2^x)/x! for x= 1,2,3,... and 0 otherwise.
Show that f(x) is a pdf.
Find the expected value of f(x).
Math   Statistics-And-Probability   
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Answer #1

The problem has to be a little modified. Here the value of x will be 0,1,2,3,...... Otherwise, f(x) will not be a pdf.

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