sajanlamixanemsajan sajanlamixanemsajan

24-12-2023
Mathematics

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2. A students committee has 10 boys and 6 girls. If three students are selected at random from this committee. What is probability that (a) they are all boys, (b) all are girls,

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djp6182583 djp6182583

24-12-2023

Prob(All boys) = 10/16 * 9/15 * 8/14
= 5/8 * 3/5 * 4/7
= 3/8* 4/7
= 12/56
= 3/14 Answer

Prob(All girls)
= 6/16 * 5/15 * 4/14
= 120/3360
= 15/420
= 1/28 Answet

=

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