A measure of correlation.Let X1和X2 be identically
A measure of correlation.Let X1和X2 be identically distributed,but not necessarily independent. let ρ=1 - H(X1|X2)/H(X1) (1)Show ρ=I(X1;X2)/H(X1) (2)Show 0≤ρ≤1 (3)When is ρ=0? (4)When is ρ=1?
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