SOLUTION: Given P(A) = 0.42 , P(B) = 0.23 and P(A or B) = 0.50, find P(A and B)

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Question 1075238: Given P(A) = 0.42 , P(B) = 0.23 and P(A or B) = 0.50, find P(A and B)
Answer by Boreal(15235) About Me  (Show Source):
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P (A or B)=P(A)+P(B)-P(A and B)
0.52=0.42+0.23-P(A and B)
P(A and B)=0.13.