STAT 150 Homework 23. Random Variable X takes integer values and has the Moment Generating Function:...

STAT 150 Homework

23. Random Variable X takes integer values and has the Moment Generating Function: Mx(t)= 4/(2-e^t) - 6/(3-e^t).

1) What is the variance of X.

2) Find the probability P(X ≤ 2).

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