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VAR(Y)

0

702

1

Var(Y)= 1.29

what is the value of

a)Var(3Y+2)

b)Var(1-2Y)

Guest Oct 30, 2018

1⁺⁰ Answers

+6252

0

$Var[a X + b] = a^2 Var[X]$

$Var[3Y+2] = 9 Var[Y] = 11.61\\ \\ Var[1-2Y] = 4 Var[Y] = 5.16$

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Rom Oct 30, 2018

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