I | [p(y/x)]=[1−ppp1−p] | CI=1−H(p) |
I,II | [p(z/x)]=[p(y/x)][p(z/y)]=[1−ppp1−p][1−ppp1−p]=[(1−p)2+p22p(1−p)2p(1−p)(1−p)2+p2] | CI,II=1−H[2p(1−p)] |
I,II,III | [p(w/x)]=[p(z/x)][p(w/z)]=[(1−p)2+p22p(1−p)2p(1−p)(1−p)2+p2][1−ppp1−p]=[(1−p)3+3p2(1−p)p3+3p(1−p)2p3+3p(1−p)2(1−p)3+3p2(1−p)] | CI,II,III=1−H[p3+3p(1−p)2] |