jancweb
jancweb jancweb
  • 23-01-2017
  • Mathematics
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A bag has 7 red marbles, 8 blue marbles and 3 black marbles. What is the probability of picking a blue marble, replacing it, and then picking a black marble?

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wide03 wide03
  • 23-01-2017
I believe that the answer is 2/27
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