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)=4 E(Y)=2 E(Z)=9 Var (X)=25 Var (Y)= 34 Var (Z)= 19 Compute the values of the expressions below. E (-21 + 3) = | -5Z-X E 4 Var (3x) + 3 = ] %3D E(-2') - O

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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 (Z)=9
Var (Y)= 34 Var (Z)= 19
E (X)= 4
E(Y)=2
Var (X)= 25
Compute the values of the expressions below.
E (-21 + 3) = |
- 5z - x
E
Var (3x) + 3 = ]
E
Transcribed Image Text: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 (Z)=9 Var (Y)= 34 Var (Z)= 19 E (X)= 4 E(Y)=2 Var (X)= 25 Compute the values of the expressions below. E (-21 + 3) = | - 5z - x E Var (3x) + 3 = ] E
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