If P(A∣B)=0.5P(A|B) = 0.5P(A∣B)=0.5 and P(B∣A)=0.5P(B|A) = 0.5P(B∣A)=0.5, what must be true about P(A)P(A)P(A) and P(B)P(B)P(B)?
P(A)=P(B)P(A) = P(B)P(A)=P(B)
P(A)=2P(B)P(A) = 2P(B)P(A)=2P(B)
P(A)=0.5P(A) = 0.5P(A)=0.5
Nothing can be concluded