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math

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There are 4 black marbles and 2 white marbles in a bag. What is the probability of choosing a black marble,not replacing it, then choosing a white marble.

  • math - ,

    1st; 1 black from 6 marbles when you have 4 black is 4chances out of 6 total marbles ie is 4/6
    2nd; one white when you have a choice of 2 out of a total of 5 marbles; ie 2/5 Therefore the sum will be
    4/6 x 2/5 = 8/30
    = 4/15

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