SOLUTION: Two marbles are drawn without replacement from a box with 3 white, 2 green, 2 red and 1 blue marble. Find the probability. At least one of the marbles is red.
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Question 245801: Two marbles are drawn without replacement from a box with 3 white, 2 green, 2 red and 1 blue marble. Find the probability. At least one of the marbles is red.
Answer by scott8148(6628) (Show Source): You can put this solution on YOUR website!
ways of drawing 2 from 8 ___ 8C2 = 28
ways of drawing 2 from 6 (NO red marbles) ___ 6C2 = 15
probability of NO red marbles ___ 15/28
probability of (at least one) red marble ___ 1 - 15/28 = 13/28
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