27 - 标准差(Standard Deviation) 与标准误差(Standard Error)
本文摘自StreinerDL.Maintainingstandards:differencesbetweenthestandarddeviationandstandarderror,andwhentouseeach.CanJPsychiatry1996;41:498–502.标准差(StandardDeviation)标准差,缩写为S.D.,SD,或者s(就是为了把人给弄晕?),是描述数据点在均值