Let X1, X2, X3, X4 be independent random variables of size 4 from a gamma distribution with α- 6 and G(a, A) e-ar T(a) Find the variance of Y = X1 + X2 + X3 + X4 Answer:

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.8: Probability
Problem 19E
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Let X1, X2, X3, X4 be independent random
variables of size 4 from a gamma distribution
G(a, X) :
xª~1
T(a)
-ax with a=
6 and
e
Find the variance of
Y = X1 + X2 + X3 + X4
Answer:
Transcribed Image Text:Let X1, X2, X3, X4 be independent random variables of size 4 from a gamma distribution G(a, X) : xª~1 T(a) -ax with a= 6 and e Find the variance of Y = X1 + X2 + X3 + X4 Answer:
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