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 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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