maths problem?

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if Pr(A|B) = 0.3 and Pr(B) = 0.6, find Pr(A n B)

2007-06-03 18:54:51 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

Pr(A/B)=Pr(A n B)/Pr(B)
so Pr(A n B)=Pr(A/B)*Pr(B)
=0.3*0.6=0.18

2007-06-03 19:09:23 · answer #1 · answered by chapani himanshu v 2 · 0⤊ 0⤋

Does PR mean Primitive Root?

2007-06-03 18:59:15 · answer #2 · answered by Rey Arson II 3 · 0⤊ 0⤋

P(A|B) = P(A∩B) / P(B)
P(A∩B) = 0.3*0.6 = 0.18

2007-06-03 19:10:55 · answer #3 · answered by Helmut 7 · 0⤊ 0⤋