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?<…

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asked Dec 9, 2015 166k views

1 Answer

Calle · Answer 1 · 2015-12-13T16:09:41+0000

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.