Mathematics, 17.06.2021 01:00 crimsonkiss

Một lớp có 60 sinh viên nữ và 30 sinh viên nam. Kiểm tra ngẫu nhiên n - 21 sinh viên . Tìn xác suất để trong đó a, có 6 sinh viên nam

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

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