Two events A,BA, BA,B have P(A)=0.5,P(B)=0.4,P(A∩B)=0.1P(A)=0.5, P(B)=0.4, P(A \cap B)=0.1P(A)=0.5,P(B)=0.4,P(A∩B)=0.1. Calculate P(Ac∣Bc)P(A^c | B^c)P(Ac∣Bc).
13\frac{1}{3}31
23\frac{2}{3}32
12\frac{1}{2}21
34\frac{3}{4}43