求翻译：各数据偏离平均数的距离（离均差）的平均数，它是离差平方和平均后的方根。用σ表示。因此，标准差也是一种平均数。标准差是方差的算术平方根。标准差能反映一个数据集的离散程度。平均数相同的，标准差未必相同。是什么意思？

The data deviate from the average distance (deviation from average) average, which is the sum of squared deviations averaged root. With σ said. Therefore, the standard deviation is also an average. Arithmetic standard deviation is the square root of the variance. Standard deviation reflects the degr

Deviation from the average distance between the various data rates) (from both the average distance, it is poor and average after the square root mean square. That should be used. Therefore, it is an average standard deviation. standard deviation is the square root of numeracy rates. standard deviat

Various data deviation mean value distance (to divided difference) the mean value, after it is the deviation sum of squares average root.With sigma expressed.Therefore, the standard deviation also is one kind of mean value.The standard deviation is the variance arithmetic square root.The standard de

The data deviate from the average distance (deviation from average) of the average, it is squared deviations and mean-square. Represented by σ. Therefore, the standard deviation is also a kind of average. Standard deviation is the square root of the variance. Standard deviation reflects the extent o

The data deviate from the average distance (deviation from average) average, which is the sum of squared deviations averaged root. With σ said. Therefore, the standard deviation is also an average. Arithmetic standard deviation is the square root of the variance. Standard deviation reflects the degr