nparzi13 nparzi13
  • 28-02-2018
  • Mathematics
contestada

A bag has 7 red marbles, 8 blue marbles and 3 black marbles. What is the probability of picking a black marble, replacing it, and then picking a red marble?

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meababy2009ow9ewa meababy2009ow9ewa
  • 28-02-2018
probability of picking a  black marble is 3/18.
probability of picking red is 7/18
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