If P(A∣B)=P(A)P(A|B) = P(A)P(A∣B)=P(A) and P(B∣A)=P(B)P(B|A) = P(B)P(B∣A)=P(B), what must be true about events AAA and BBB?
They are mutually exclusive
They are independent
One is a subset of the other
They are exhaustive