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22 June, 13:07

a box contains 4 white balls and 6 yellow balls. A ball is drawn randomly from the box and is not replaced. What is the probability that both balls are white? A.) 3/25 B.) 8/45 C.) 2/15 D.) 4/25

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  1. 22 June, 13:14
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    C

    Step-by-step explanation:

    The question is actually, 2 balls are randomly taken and not replaced. What is the probability that both balls are white?

    There are 4 while balls and 6 yellow balls. So total 10 balls.

    The probability of a white ball at first draw is 4/10

    * * Since not replaced, so we have 1 less white ball and 1 less total ball. So there are now 3 white balls and 9 total balls. So:

    The probability of a white ball at second draw is 3/9

    We multiply both so: 4/10 * 3/9 = 2/15

    Correct answer is C
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