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probabilities?

p(a|b) = .85
and p(b=.12)
find p(a n b)

.343
.102
.574
.054

2007-08-25 14:49:53 · 2 answers · asked by akyone69 1 in Science & Mathematics ➔ Mathematics

2 answers

P(a∩b) = P(a|b)*P(b)
P(a∩b) = .85 * .12 = .102

2007-08-25 14:54:57 · answer #1 · answered by Northstar 7 · 0⤊ 0⤋

p(A|B) = p(A∩ B)/ p(B) ==> p (A ∩ B) = p(B) . p(A/B) = .12 *.85 = .102

2007-08-25 22:01:47 · answer #2 · answered by cool_black_stallion75 2 · 0⤊ 0⤋

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