SOLUTION: 3 red envelopes, 2 blue envelopes, 1 green envelope, and 3 yellow envelopes. Three envelopes are selected at random, without replacement, determine the probability that they are al

SOLUTION: 3 red envelopes, 2 blue envelopes, 1 green envelope, and 3 yellow envelopes. Three envelopes are selected at random, without replacement, determine the probability that they are al

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Question 1129924: 3 red envelopes, 2 blue envelopes, 1 green envelope, and 3 yellow envelopes. Three envelopes are selected at random, without replacement, determine the probability that they are all yellow envelopes

Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
9 envelopes, 3 are yellow
(3/9) probability first is then (2/8) and (1/7)
This is (1/3)(1/4)(1/7)=1/84
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