变异系数（coefficient of variation CV） ：标准差与算术均数的比值。 频数分布表的用途： 1 揭示资料的分布类型 2 由频数分布表可以看到频数分布的两个重要特征：集中趋...
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In growing season, the coefficient of variation (CV) in spatial change were 36%, 47% and 35%, respectively.
在这三个生长季节中，土壤呼吸速率的空间变异性系数分别为36%、47%和35%。
Objective To analyze the coefficient of variation(CV) by measurements of bone mineral density with the dual-energy X-ray absorptiometer(DXA, Prodigy).
目的分析骨密度仪测量骨密度的变异系数。
Methods the ambulatory blood pressure of 7 patients with artery stenosis was tested before and after endovascular treatment, and the coefficient of variation (CV) was calculated.
方法使用动态血压监测仪测量7例血管内支架置入术患者支架置入前后的动态血压值，计算变异系数。
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