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Posted by on Wednesday, February 20, 2013 at 9:33am.

If there are 3 green marbles and 4 blue marbles in a box, what is the probability that a blind-folded person would pick a blue marble?

  • math - , Wednesday, February 20, 2013 at 9:37am

    You have 4 chances out of 7 of getting a blue marble.

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