MomentsWarningThis post is more than a year old. Information may be outdated.E[aX+b]=aE[X]+b\mathbb{E}[aX+b] = a\mathbb{E}[X] + bE[aX+b]=aE[X]+b V[aX+b]=a2VX\mathbb{V}[aX+b] = a^2 \mathbb{V}{X}V[aX Backlinks1CauchyComments
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