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【简答题】
表2-1所示是对某个长度的测量结果 表2-1 长度的测量结果 序号 1 2 3 4 5 6 7 8 9 10 读数x/cm 49.3 50.1 48.9 49.2 49.3 50.5 49.9 49.2 49.8 50.2 试计算测量数据的标准离差、均值、中位数和众数。
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