标题: 看到一段关于说"标准差"的,顺便翻译了. [打印本页] 作者: wgs0923 时间: 2007-4-20 11:27 标题: 看到一段关于说"标准差"的,顺便翻译了. 原文:
Standard Deviation
Standard deviation is a statistical measure of the extent of variation in a set of data. The standard deviation tells you the extent of the spread of individual items around the average.
The number in the 90% column is shown after a run is completed in the Analysis program, not in the Controller) because it is calculated by sorting all items by value obtained during the run, then identifying the value associated the item at the top 10% of all items.
The CV (Coefficient of Variation) makes the standard deviation number easier to comprehend by representing it as a multiple of the average.