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For a random variable V(X) = 4. Find V(3X +4) and V(-3X). |
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Answer» V(3X+4) = 32 V(x) = 9 (4) = 36; V(-3X) = (-3)2 V(x) = 9 (4) = 36; Since V(aX+b) =a2 V(X), |
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