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in an experiment the probablility that event A occurs is 3/7 the probability that event B occurs is 1/5 and the probabliity that events A and B both occur is 1/8

User Thomas Vervik
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1 Answer

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In order to calculate the probability of A given B, we can use the formula:


P(A|B)=(P(A\cap B))/(P(B))

So we have that:


P(A|B)=((1)/(8))/((1)/(5))=(1)/(8)\cdot5=(5)/(8)

User Yanan
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