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

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.CR: Chapter 13 Review
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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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