If P(A|B) = 0.4 and P(B) = 0.5, determine the intersection of events A and B.
A. 0.20
B. 0.25
C. 0.70
D. 0.90
Will give a thumbs up whoever can answer this correctly.
Bayes' Theorem: P(A | B) = P(A B) / P(B)
P(A | B) = 0.4
P(B) = 0.5
0.4 = P(A B) / 0.5
P(A B) = 0.4 x 0.5
P(A B) = 0.2
Ans: A. 0.20
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