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27 April, 23:38

If a ball is selected at random from an urn containing six red balls, seven white balls, and seven blue balls, what is the probability that it will be a white ball?

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  1. 28 April, 00:08
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    total no of white balls n (W) = 7

    total no of balls n (s) = 7+6+7=20

    Step-by-step explanation:

    probability of white ball = n (w) / n (s)

    =7/20
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