Consider two events AAA and BBB where P(A)=0.4P(A) = 0.4P(A)=0.4, P(B∣A)=0.5P(B|A) = 0.5P(B∣A)=0.5, and P(A∣B)=0.25P(A|B) = 0.25P(A∣B)=0.25. What is P(B)P(B)P(B)?
0.8
0.5
0.4
0.2