Question

In: Math

If E(X) = 5, V(X) = 3 and Y = 5 - X/3 - X, what...

If E(X) = 5, V(X) = 3 and Y = 5 - X/3 - X, what is mean of Y?

Solutions

Expert Solution

Y = 5 - X/3 - X = 5 - 4X/3

Mean of Y = E(Y) = 5 - 4/3 * E(X) = 5 - 4/3 * 5 = -5/3

                                                                                                                                                                                                                 


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