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Thread: Conditional probability problem

  1. #1
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    Conditional probability problem




    Hey all,

    I hope you can help me with this problem.

    Say that tomorrow I can go to Berlim with a probability of 20%, Madrid with a probability of 10% or New York with a probability of 5% (or stay home with prob of 65%). Then, what is the probability that tomorrow I go to one of those cities knowing that I can only go to one of them.

    Br

    Joao

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    Re: Conditional probability problem


    hi,
    you mean, knowing that you went to a city, what is the probability that you picked that particular one right?

    I guess, by the definition of the conditional probability it should be the P(city|you travelled) = P(city)/P(travel) so for example P(Berlin) = 0.2/0.35 and so on.

    regards
    rogojel

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