Y asked in Science & MathematicsMathematics · 8 years ago

Probability:moment generating function urgentt pls?

The range of discrete random variable X is the set of all natural numbers and P(X =k) = C/9^k for

k =1,2,.... Determine C and the moment generating function of X.

2 Answers

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  • Anonymous
    8 years ago
    Favorite Answer

    Well...

    Σ^(k ≥ 1) C/9^k = 1

    Then...

    Sum = C/(1 - 1/9)

    = C/(8/9)

    = 9C/8

    Therefore, you should get...

    9C/8 = 1

    C = 8/9

    Good luck!

    Source(s): τ
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    4 years ago

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