If P(A)=0.2,P(B)=0.5P(A) = 0.2, P(B) = 0.5P(A)=0.2,P(B)=0.5, and P(A∩B)=0.1P(A \cap B) = 0.1P(A∩B)=0.1, what is the conditional probability P(B∣Ac)P(B | A^c)P(B∣Ac)?
0.40.8\frac{0.4}{0.8}0.80.4
0.10.8\frac{0.1}{0.8}0.80.1
0.50.8\frac{0.5}{0.8}0.80.5
0.40.2\frac{0.4}{0.2}0.20.4