Mathematics, 14.06.2021 09:40 maggiemae4993

Một lớp có 100 sinh viên, trong đó có 40 sinh viên giỏi ngoại ngữ, 30 sinh viên giỏi tin học, 20 sinh viên giỏi cả ngoại ngữ lẫn tin học. Sinh viên nào giỏi ít nhất một trong
hai môn sẽ được thêm điểm trong kết quả học tập của học kỳ. Chọn ngẫu nhiên một sinh
viên trong lớp. Tìm xác suất để sinh viên đó được thêm điểm.

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Một lớp có 100 sinh viên, trong đó có 40 sinh viên giỏi ngoại ngữ, 30 sinh viên giỏi tin học, 20 si...

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