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Math Help - Probability problem

  1. #1
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    Probability problem

    Hello,
    I hope someone can answer:
    Draw two cards from a stack of 12 cards, numbered 1-12, without replacement what is the probability that the first card is even and the second card is a multiple of 4?
    this is what I have so far, after that I'm lost.

    A= the event that the first card is even
    B= the event that the second card is a multiple of 4
    P(A and B) = P(A) x P(B given A)

    Thanks,
    Kelly
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  2. #2
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    Quote Originally Posted by kellyc View Post
    Hello,
    I hope someone can answer:
    Draw two cards from a stack of 12 cards, numbered 1-12, without replacement what is the probability that the first card is even and the second card is a multiple of 4?
    this is what I have so far, after that I'm lost.

    A= the event that the first card is even
    B= the event that the second card is a multiple of 4
    P(A and B) = P(A) x P(B given A)

    Thanks,
    Kelly
    Why not draw a tree diagram? Then the problem is trivial to do.
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