Suppose AAA and BBB are events such that P(A)=0.4P(A) = 0.4P(A)=0.4, P(B)=0.5P(B) = 0.5P(B)=0.5, and P(A∪B)=0.7P(A \cup B) = 0.7P(A∪B)=0.7. Calculate the probability P(Ac∩Bc)P(A^c \cap B^c)P(Ac∩Bc).
0.30.30.3
0.20.20.2
0.10.10.1
0.40.40.4