# Question: Prove Theorem 4 7 Theorem 4 7 If X has the variance 2 Then var aX

Prove Theorem 4.7.

Theorem 4.7

If X has the variance σ2, Then

var(aX + b) = a2σ2

Theorem 4.7

If X has the variance σ2, Then

var(aX + b) = a2σ2

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