standard deviation 和standard error的区别，能讲的通俗些吗？ 但是同理，如果你想知道中国人的身高标准差（population standard deviation），可以每次采样1000人，采样了100次。 每次采样得出的“身高标准差”是不一样的，这100次不一样的“身高标准差”本身组成了一个标准差的样本分布（sampling distribution of the standard deviation）。
偏差——bias与deviation的联系 区别？ - 知乎 Deviation is a measure of difference between the observed value of a variable and some other value, often that variable's mean The sign of the deviation reports the direction of that difference (the deviation is positive when the observed value exceeds the reference value) The magnitude of the value indicates the size of the difference [4]
SQL - STDEVP or STDEV and how to use it? - Stack Overflow The population standard deviation, generally notated by the Greek letter lower case sigma, is used when the data constitutes the complete population It is difficult to answer your question directly -- sample or population -- because it is difficult to tell what you are working with: a sample or a population It often depends on context