Q.If $A$ and $B$ are two events such that $P(A) = 0.7$ , $P(B) = 0.8$ and $P(A \cap B) = 0.6$ , then $P(A^c \cup B^c)$ equals

0.4

0.5

0.6

0.7

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Q.If AAA and BBB are two events such that P(A)=0.7P(A) = 0.7P(A)=0.7, P(B)=0.8P(B) = 0.8P(B)=0.8 and P(A∩B)=0.6P(A \cap B) = 0.6P(A∩B)=0.6, then P(Ac∪Bc)P(A^c \cup B^c)P(Ac∪Bc) equals