Correct?

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- April 8th 2011, 08:22 PMdwsmithMoment Generating Function Gamma Distrib

Correct? - April 8th 2011, 08:38 PMmr fantastic
After simplification, does it agree with the general result given here: Gamma distribution - Wikipedia, the free encyclopedia ?

- April 9th 2011, 10:14 AMdwsmith
It does.

But when I take the second derivative as t = 0 and subtract that from the mean squared, I don't obtain the correct variance. - April 9th 2011, 11:21 AMtheodds