Math

One bag contains 5 red marbles, 4 blue marbles, and 3 yellow marbles, and a second bag contains 4 red marbles, 6 blue marbles, and 5 yellow marbles. If Lydia randomly draws one marble from each bag, what is the probability that they are both not yellow?

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  1. The two draws are independent.
    So the probability of getting a yellow in both bags is the product of the probability of getting a yellow in each bag.

    P1(Y)=3/12
    P2(Y)=5/15
    So
    P(Y,Y)=P1(Y)*P2(Y)

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  2. ryrrr7o

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  3. 1/12

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  4. 4

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  5. The question asks the opposite... not yellow.
    so 9/12 * 10/15 = .75 * .666 = 50%

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  6. Andrew has it right.

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