doanmaiphuong888 doanmaiphuong888

15-06-2021
Mathematics

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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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tranthiquynhnhu123ht tranthiquynhnhu123ht

16-06-2021

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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