E9n0eeueromanJennise E9n0eeueromanJennise

14-08-2016
Mathematics

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Suppose A and B are dependent events. If P(A|B) = 0.25 and P(B) = 0.8 , what is P(AuB)?

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meerkat18 meerkat18

18-08-2016

According to the rules of probability, the relationship between two dependent events is expressed in the following equation below
P(A|B) = P(A∩B) / P(B)
Substituting,
0.25 = P(A∩B) / 0.8
P(A∩B) = 0.2

The answer hence is 0.2

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