algebra

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a bag contains 3 green marbles, 2 yellow marbles, and 5 blue marbles. a marble is picked at random and replaced. a second marble is picked at random. what is the probability that the first marble is yellow and the second is not yellow.

  • algebra -

    It is replaced so the drawings are independent
    10 marbles total
    probability yellow = 2/10
    probability not yellow = 8/10
    product = 2/10 * 8/10

    = 1/5 * 4/5
    = 4/25
    = 0.16

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