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Math Help - probability of picking at least one

  1. #1
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    probability of picking at least one

    suppose you randomly draw two marbles, without replacement, from a bag containing six green, four red, and three black.

    Determine the probability that you pick at least one green marble.
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  2. #2
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    Because at least one is the complement of NONE, it is quite often easier to work with the that.
    What is the probability of drawing no green marble?
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