further stats 1 Flashcards by erin buckland | Brainscape

Q

E+Var(aX+b)

A

aE(X)+b
a^2var(x)

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Q

E+Var(X1+X2)

A

E(X1)+E(X2)
Var(X1)+ Var(X2)

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Q

E+Var(aX1+bX2)

A

aE(X1)+bE(X2)
a^2E(X1) + b^2E(X2)

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