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15 August, 08:37

A box contains 6 red marbles and 4 white marbles. one marble is pulled from the box and not replaced. then a second marble is pulled from the box. what is the probability both marbles are white?

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  1. 15 August, 12:31
    0
    2/15

    Step-by-step explanation:

    There are 10 marbles in the box

    P (1st marble white) = white/total

    =4/10 = 2/5

    We keep the marble

    There are now 9 marbles in the box, 6 red and 3 white

    P (2nd marble white no replace) = white / total

    = 3/9 = 1/3

    P (white, white no replacement) = P (1stwhite) P (2nd white no replace)

    = 2/5 * 1/3

    = 2/15
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