Consider a collection of envelopes consisting of 3 red envelopes, 3 blue envelopes, 3 green envelopes, and 3 yellow envelopes. If three envelopes are selected at random, with replacement, determine the probability that at least one envelope is a green envelop
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Answer:
3/4
Step-by-step explanation:
probability of green envelope is 3 from total 12
first draw is 3/12 plus second plus third equal 9/12 which equals 3/4
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