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    Sana786's Avatar
    Sana786 Posts: 1, Reputation: 1
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    #1

    Aug 7, 2013, 03:03 PM
    Suppose X has moment generating function mX(t) = (e^t -1)/t. Find EX
    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's Avatar
    CWH68 Posts: 26, Reputation: 2
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    #2

    Apr 11, 2015, 12:21 AM
    E(X) = mX'(0). Hint: Differentiate the Taylor series expansion of
    mX(t) at t=0.
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