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Posted by on Tuesday, June 7, 2011 at 2:30pm.

A bag has 5 red marbles, 6 blue marbles and 4 black marbles. What is the probability of picking a
blue marble, replacing it, and then picking a black marble?

  • MATH - , Tuesday, June 7, 2011 at 3:02pm

    what is (6/15)(4/15) ?

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