释义 |
population standard deviation - 总体标准差:用于衡量一组数据的离散程度,是每个数据值与总体均值之差的平方和的平均值的平方根。
1 [数]?总体标准差 总体标准差(Population Standard Deviation),是衡量总体中个别单位偏离总体平均值的离散程度的指标,标准差越大,样本量.. 2 ?总体标准偏差 【摘要】: 正一、总体标准偏差、实验标准偏差和合并样本标准偏差总体标准偏差(population standard deviation)规范化的符号为δ,定义为: 式中:μ——总体均值,N次测量结果分布的期望; N——测量次数,N接近无穷大;xi——N个测量结果中的第i个... 3 ?母体标准差 若已知其母体标准差 (population standard deviation)为 10,令 X 为样本平均数 (sample mean) .. 4 ?意义 标准误差 ? 的意义 (population standard deviation) 是正态分布函数的一个参数
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The mean adherence rate in the study population was 96.3% (standard deviation, SD: 7.7). 研究人群中的平均依从率为96.3%(标准差,SD:7.7)。 - 2
For example, one may need to generate samples drawn from a normally distributed population or may need to compute the standard deviation of a large data set or plot a histogram. 例如,可能需要自常态分配数量之产生样本或需要计算大量资料的标准差或绘制直方图。 - 3
The normal population characteristics, such as the mean, standard deviation, percentile, percentage and coefficient of variation, are often tested in engineering. 正态母体特征值(母体均值、百分位值、百分率、标准差和变异系数等)的检验是工程中常见的问题。
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