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thaidethuong2001
2 năm trước
Bài toán 15: Một cửa hàng dép ghi lại số dép đã bán cho nữ giới trong một quý theo các cỡ khác nhau như sau: Cỡ dép (x) 34 35 36 37 38 39 40 Số dép bán được (n) 62 80 124 43 21 13 1 N=344 a) Dấu hiệu ở đây là gì? b) Số nào có thể “đại diện” cho dấu hiệu? tại sao? c) Có thể rút ra nhận xét gì?
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