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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