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X, Y, Z are 3 independent random variables. We know that Y, Z is the 0-1...

X, Y, Z are 3 independent random variables. We know that Y, Z is the 0-1 random variables indicating whether tossing a regular coin gets a head (1 means getting a head and 0 means not). We also know the following equations,

E(X2Y +XYZ)=7

E(XY 2 + XZ2) = 3

Please calculate the expectation and variance of variable X.

Math   Statistics-And-Probability   
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Note-if there is any understanding problem regarding this please feel free to ask via comment box..thank you

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