Question

Asked Oct 31, 2019

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Show that: (a) Cov(X,Y) = E[XY] – E[X]E[Y].

(b) If X and Y are independent, then fY|X(y|x) = fY(y)

Step 1

**Solution:**

**a.Show that COV(X,Y)=E(XY)–E(X)E(Y)**

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