英语翻译英语翻译提问:The within-laboratory coefficient of variation wa
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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
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
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.其中n为样本含量,k为被限制的条件数或变量个数,或计算某一统计量时用到其它独立统计量的个数.自由度通常用于抽样分布中.
文中9% with 22df 应该是指参数有9%的差异,自由度为22.
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.其中n为样本含量,k为被限制的条件数或变量个数,或计算某一统计量时用到其它独立统计量的个数.自由度通常用于抽样分布中.
文中9% with 22df 应该是指参数有9%的差异,自由度为22.
英语翻译英语翻译提问:The within-laboratory coefficient of variation wa
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