To calculate I, we performed 104 realizations of the pair (x, y) and solved numerically the following integral I=-∫-∞+∞PΔy(s)log2PΔy(s)ds+∫-∞+∞Plogx(r)×∫-∞+∞PΔy|logx(s)log2PΔy|logx(s)dsdr,(4) where we considered logx as input and Δy as output variables.