Let P(A∣B)=0.4P(A|B) = 0.4P(A∣B)=0.4 and P(B∣A)=0.2P(B|A) = 0.2P(B∣A)=0.2. What is the ratio P(A)P(B)\frac{P(A)}{P(B)}P(B)P(A)?
0.5
2
0.08
0.6