(a) Show that the mgf of X is (b) Find E(X) and Var(X). Mx (t): [if t‡0, if t = 0

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Q3 Let X have the pmf p(x) =
(a) Show that the mgf of X
is
for x = 1,2,3,..., k, and zero elsewhere.
Mx (t)
(b) Find E(X) and Var(X).
Jay if t‡0,
if t = 0
Transcribed Image Text:Q3 Let X have the pmf p(x) = (a) Show that the mgf of X is for x = 1,2,3,..., k, and zero elsewhere. Mx (t) (b) Find E(X) and Var(X). Jay if t‡0, if t = 0
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