E9n0eeueromanJennise
E9n0eeueromanJennise E9n0eeueromanJennise
  • 14-08-2016
  • Mathematics
contestada

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 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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