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Mathematics, 29.07.2021 20:20 tay8963

Tỷ lệ nam trong 1 lớp học là 60% còn lại là nữ. Tỷ lệ học sinh nữ đạt học sinh giỏi là 4%, tỷ học sinh nam đạt học sinh giỏi là 3%. Lấy ngẫu nhiên 1 học sinh. Xác suất học sinh đó đạt loại giỏi là:

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Tỷ lệ nam trong 1 lớp học là 60% còn lại là nữ. Tỷ lệ học sinh nữ đạt học sinh giỏi là 4%, tỷ học si...
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