If P(A)=0.4P(A) = 0.4P(A)=0.4 and P(A∪B)=0.7P(A \cup B) = 0.7P(A∪B)=0.7, what is P(B)P(B)P(B) if AAA and BBB are independent?
0.3
0.4
0.5
0.6