P(not B| not A) = P(not B and not A)/P(not A) = [1 - P(A or B)]/P(not A) = [1 - (P(A) + P(B) - P(A and B))]/P(not A) = [1 - (0.25 + 0.65 - 0.1)]/0.75 = [1 - 0.8]/0.75 = 0.2/0.75 = 0.267.
Ariel G.
asked • 06/14/20Use the following probabilities to answer the question. It may be helpful to sketch a Venn diagram. P ( A ) = 0.25 , P ( B ) = 0.65 and P ( A and B ) = 0.10 .
P(notB∣notA)=
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