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19 June, 07:35

A bag contains 2 red marbles, 7 blue marbles and 6 green marbles. If two marbles are drawn out of the bag, what is the probability, to the nearest 1000th, that both marbles drawn will be red?

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  1. 19 June, 08:23
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    Let r be the red marble, b the blue marble, g the green marble.

    possible outcomes={r, r, b, b, b, b, b, b, b, g, g, g, g, g, g}

    total=15

    2/15=.133 is the probability
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