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**Unformatted text preview: **E{Y} = E{g(X)} = sum p(x)g(x) Or integral f(x)g(x)dx •
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• X a random variable, Y a random variable, Z etc Then X + Y + Z + etc is also What is the expecta4on of the sum? The sum of the expecta4ons! The variance • X a random variable • With expecta4on µ • Then the variance is the expecta4on of (X- µ)2 • What is the variance...

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