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26 July, 04:44

a bag contains 3 red marbles, 8 blue marbles and 5 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 blue

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  1. 26 July, 04:53
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    0.233

    Step-by-step explanation:

    There are a total of 16 marbles.

    The probability the first marble is blue is 8/16.

    Assuming the marble isn't replaced, the probability the second marble is blue is 7/15.

    So the probability of both marbles being blue is 8/16 * 7/15 = 7/30 ≈ 0.233.
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