Mathematics, 23.07.2021 16:40 Arielledt10

. Muốn thu thập các số liệu thống kê về một vấn đề cần quan tâm thì người điều tra cần phải làm những công việc gì ? Trình bày kết quả thu được theo mẫu những bảng nào ?

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. Muốn thu thập các số liệu thống kê về một vấn đề cần quan tâm thì người điều tra cần phải làm nhữn...