Question: Let X and Y be two random independent variables with X = 120, X = 22, Y = 360 and Y = 27, find: .

Let X and Y be two random independent variables with X = 120, X = 22, Y = 360 and Y = 27, find: .

1. E(4 X 1 Y + 220) =

2. Var(4 X 1 Y + 220) =

3. SD(4 X 1 Y + 220) =

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