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October 15th, 2017, 07:47 PM   #1
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P(aub)=?

if P(A∩B)=0.04, P(A∩(1-P(B)))=0.38 how do you calculate P(A) = ?
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October 15th, 2017, 08:01 PM   #2
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What have you tried? It might help to draw a diagram showing the intersection of A and B, and the compliment of B. Then try to form an expression for P(A).
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October 16th, 2017, 02:14 PM   #3
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P(A∩(1-P(B))) doesn't look right. Did you mean P(A∩B')?
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October 23rd, 2017, 12:02 PM   #4
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Quote:
Originally Posted by bilguunee View Post
if P(A∩B)=0.04, P(A∩(1-P(B)))=0.38 how do you calculate P(A) = ?
I have no idea what "P(A∩(1-P(B)))" means! A is an event but 1- P(B) is a number the probability that even B does not happen. How do you intersect an event (a set) with a number?
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