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For any two events A and B, P(B) = P(A) P(B|A) + P(A) P(B|A). If we know that P(A) = 1/3, P(A and B )
For any two events A and B, P(B) = P(A) P(B|A) + P(A) P(B|A). If we know that P(A) = 1/3, P(A and B ) = 1/5, and that P(B) = 1/4, then what is P(B|A)?
a.3/40
b.1/5
c.9/80
d.2/3
e.3/5
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Abstract Analytic Number Theory
Authors: John Knopfmacher
1st Edition
0486169340, 9780486169347
