The standard deviation is the square root of the variance.
标准差是方差的平方根。
Standard deviation is a measure of dispersion, variation or spread.
标准差衡量色散、变异或扩散。
The relative standard deviation of the determined result is less than 5 %.
测得结果的相对标准偏差均小于5%。
With modern transportation condition, track management must consider maximum and standard deviation of irregularity.
在现代运输条件下，要求轨道管理同时兼顾峰值和标准差。
This could be expressed as the standard deviation of the delivery time.
传输时间可以用标准偏差方式表示。
Relative standard deviation of this method is below 3 %.
方法的相对标准差低于3%。
The positive square root of the variance is called the standard deviation.
方差的正的平方根叫做标准差。
The positive square root of the variance is called the standard deviation.
方差的正的平方根叫做标准差。
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