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For a random variable X , suppose that E[X] = 3 and Var(X) = 4. Then (a) E[(5+X)^2]= (b) Var (2 + 6X)=

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015

1st Edition

ISBN:9781680331141

Author:HOUGHTON MIFFLIN HARCOURT

Publisher:HOUGHTON MIFFLIN HARCOURT

Chapter11: Data Analysis And Displays

Section: Chapter Questions

Problem 6CT

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For a random variable X , suppose that E[X] = 3 and Var(X) = 4. Then

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

(b) Var (2 + 6X)=

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