If X,YX, YX,Y are i.i.d. U(0,1)U(0, 1)U(0,1), what is E[∣X−Y∣]E[|X-Y|]E[∣X−Y∣]?
1/21/21/2
1/31/31/3
1/41/41/4
1/61/61/6