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英语翻译
英语翻译提问:The within-laboratory coefficient of variation was found to be 9% with 22df and the between-laboratories coefficient of variation 35% with 7df.句中9% with
人气:168 ℃ 时间:2019-10-11 06:01:21
解答
df=degree of freedom自由度(degree of freedom,df)在数学中能够自由取值的变量个数,如有3个变量x、y、z,但x+y+z=18,因此其自由度等于2.在统计学中,自由度指的是计算某一统计量时,取值不受限制的变量个数.通常df=n-k...
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