Question

In a class with 20 students, 8 males and 12 females, 5 students are selected. Use...

In a class with 20 students, 8 males and 12 females, 5 students are selected. Use hypergeometric distribution to find that 2 are males and 3 are females.

Math   Statistics-And-Probability   
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Answer #1

N = 20

n = 5

k = 8

P(2 males and 3 females) = 8C2 * 12C3 / 20C5

                                         = 28 * 220 / 15504

                                         = 0.3973

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