Batts137 Batts137
  • 20-05-2014
  • Mathematics
Answered

A bag contains 4 blue, 4 red, and 4 green marbles. Four marbles are drawn at random from the bag. How many different samples are possible which include exactly two red marbles?



Answer :

draonrider
draonrider draonrider
  • 20-05-2014
you make a tree diagram to find the possible outcomes, which there are 81 possible outcomes, 24 of which have exactly 2 red in them.
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