a box contains 5 blue chips and 11 red chips. a person selects two chips without replacement, find the probability of selecting 2 blue chips?

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27-10-2016
Mathematics

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a box contains 5 blue chips and 11 red chips. a person selects two chips without replacement, find the probability of selecting 2 blue chips?

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texaschic101 texaschic101 · Answer 1 · 2016-10-27T15:06:04+02:00

texaschic101 texaschic101

27-10-2016

5 blue chips, 11 red chips.....total of 16 chips

probability of first being blue = 5/16
without replacement
probability of 2nd being blue = 4/15

probability of both : 5/16 * 4/15 = 20/240 reduces to 1/12

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