For a random variable X with mgf Mx Ct) = exp{t" DFind ECX] 3t DEind Ef X 2. DEnd Var EX]

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.8: Probability
Problem 23E
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For a random variable X with mgf Mx(t)=exp{t^2−3t/2};

i) Find E[X]

ii) Find E[X^2]

iii) Find Var[X]

For a random variable X with
mgf
Mx Ct) = exp{t"
Find ELX]
Ma Ce) =exp{t -
3t
DFind Ef X
) Find Var EX]
Transcribed Image Text:For a random variable X with mgf Mx Ct) = exp{t" Find ELX] Ma Ce) =exp{t - 3t DFind Ef X ) Find Var EX]
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