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A bag contains 9 red marbles, 5 white marbles, and 6 blue marbles. You draw 4 marbles out at random, without replacement. Find the probability that exactly one of the marbles is…

A bag contains 9 red marbles, 5 white marbles, and 6 blue marbles. You draw 4 marbles out at random, without replacement. Find the probability that exactly one of the marbles is…
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A bag contains 9 red marbles, 5 white marbles, and 6 blue marbles. You draw 4 marbles out at random, without replacement. Find the probability that exactly one of the marbles is red

User Dchest
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1 Answer

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If you grab exactly 1 red, you calculate first what the probability is to just grab 1 red, then what it is to not grab another red

So, 9/24*15/23*14/22*13/21=195/2024=9.63%
User Abilash
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