?A random variable X has the discrete uniform distribution \(f(x)=\frac{1}{m}\)
Chapter 5, Problem 5.8.1(choose chapter or problem)
A random variable X has the discrete uniform distribution
\(f(x)=\frac{1}{m}\), \(x=1,2, \ldots, m\)
(a) Show that the moment-generating function is
\(M_{X}(t)=\frac{e^{t}\left(1-e^{t m}\right)}{m\left(1-e^{t}\right)}\)
(b) Use \(M_{X}(t)\) to find the mean and variance of X.
Text Transcription:
f(x)=1/m
x=1,2, ldots, m
M_X(t)=e^t(1-e^tm)/m(1-e^t)
M_X(t)
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