If (A \cup B) = 0.8 and P (A\cap B) = 0.3 then P(A^{-} ) + P(B^{-} ) is equal to:

2018 Nov Business Mathematics and Logical reasoning and Statistics

Question : 87 of 100

Marks: +1, -0

(A ∪ B) = 0.8

and

P (A∩ B) = 0.3

then

P(A↖{-} ) + P(B↖{-} )

is equal to:

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