SOLUTION: A and B are two events and P (A) = 0.6, P (B) = 0.7 and P (A or B) = 0.9 Find P (not A and B) =

SOLUTION: A and B are two events and P (A) = 0.6, P (B) = 0.7 and P (A or B) = 0.9 Find P (not A and B) =

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Question 1103066: A and B are two events and P (A) = 0.6, P (B) = 0.7 and P (A or B) = 0.9
Find P (not A and B) =

Answer by robertb(5830) (Show Source): You can put this solution on YOUR website!
Use a Venn diagram to verify that
P(A u B) - P(A) = P(A' and B).
==> P(A' and B) = 0.9 - 0.6 = 0.3.
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