7.33. If E[X] = 1 and Var(X) = 5, find (a) E[(2 + X)²]; (b) Var (4 + 3X).

Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter11: Rational And Irrational Numbers
Section: Chapter Questions
Problem 23CLR
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7.33. If E[X] = 1 and Var(X) = 5, find
(a) E[(2 + X)²];
(b)
Var(4 + 3X).
Transcribed Image Text:7.33. If E[X] = 1 and Var(X) = 5, find (a) E[(2 + X)²]; (b) Var(4 + 3X).
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