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View Full Version : Suppose X has moment generating function mX(t) = (e^t -1)/t. Find EX

Sana786
Aug 7, 2013, 03:03 PM
this question requires to find the expected value of X given the moment generating function

How would you go about to start this?
Please help :)
CWH68
Apr 11, 2015, 12:21 AM
E(X) = mX'(0). Hint: Differentiate the Taylor series expansion of
mX(t) at t=0.