If P(A)=0.8P(A) = 0.8P(A)=0.8 and P(A∣B)=0.8P(A|B) = 0.8P(A∣B)=0.8, which of the following must be true?
AAA and BBB are mutually exclusive
AAA and BBB are independent
P(B)=1P(B) = 1P(B)=1
AAA is a subset of BBB