Suppose P(A∣B)=0.3P(A|B) = 0.3P(A∣B)=0.3 and P(B∣A)=0.6P(B|A) = 0.6P(B∣A)=0.6. If P(A)=0.4P(A) = 0.4P(A)=0.4, what is P(B)P(B)P(B)?
0.2
0.8
0.4
0.5