Suppose that X, Y, and Z are jointly distributed random variables, that is, they are defined on the same sample space. Suppose that we also have the following. E (X)= 5 Var (X) = 20 Var(Y)=6 Var(z) = 23 E(Y)=-7 E(Z) = 3 Compute the values of the expressions below. E (-2X – 4) = 0 %3D -3Z + 2x E 3 Var (27 + 3) = 0 z(-sx') - O

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Q: E(-27 + 3) = %3D -5z - x E %3D 4 Var (3x) + 3 = O %3D

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Q: Suppose that X, Y, and Z are jointly distributed random variables, that is, they are defined on the…

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A: Given EX=-5,EY=6,EZ=3 and VarX=15,VarY=10,VarZ=29.

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Q: E(-4X + 4) = | 5z - 4X - 0 %3D 4 Var (sz) + 5 0 E(2x*) - I

A: Given,  E(X)= -6 E(Y)= -9 E(Z)= -7 V(X)= 32 V(Y)= 38 V(Z)= 37

Q: uted random variables, that is, they are defined on the same sample space. = 5 )=26 Dw.

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Q: Suppose that X, Y, and Z are jointly distributed random variables, that is, they are defined on the…

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