Answered: For a random variable X, suppose that…

For a random variable X, suppose that E[X]=4 and Var(X)=7. Then (a) E[(5+X)2]= (b) Var(2+6X)= What formula is being used?

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Question

For a random variable X, suppose that E[X]=4 and Var(X)=7. Then

(a) E[(5+X)2]=

(b) Var(2+6X)=

What formula is being used?

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