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Ratling [72]
3 years ago
10

Một lớp có 60 sinh viên nữ và 30 sinh viên nam. Kiểm tra ngẫu nhiên n - 21 sinh viên . tìm xác suất để trong đó

Mathematics
1 answer:
mote1985 [20]3 years ago
5 0

Answer:

Step-by-step explanation:Một lớp có 60 sinh viên nữ và 30 sinh viên nam. Kiểm tra ngẫu nhiên n - 21 sinh viên . tìm xác suất để trong đó

a, có 6 sinh viên nam

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