cynthiaferack cynthiaferack

24-06-2016
Mathematics

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you have a bag full of 17 marbles. Of those marbles, 3 are black. What is the probability that a marble chosen is not black

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olemakpadu olemakpadu

24-06-2016

Total number of marbles = 17

3 are black.

Not black = 17 - 3 = 14.

Probability of not black = Number not black / Total

= 14 / 17

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