Let X be a random variable with E(X)= 1 and E[X(X-1)]=4,then evaluate Var(2-3X).

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.8: Probability
Problem 9E
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Let X be a random variable with E(X)= 1 and E[X(X-1)]=4,then evaluate
Var(2-3X).
(a)28
(b)42
(c) 26
(d) 36
Transcribed Image Text:Let X be a random variable with E(X)= 1 and E[X(X-1)]=4,then evaluate Var(2-3X). (a)28 (b)42 (c) 26 (d) 36
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