問答題

純KCl試樣中w(Cl)(%)的六次分析結(jié)果分別為:47.45,47.33,46.88,47.24,47.08,46.93。計(jì)算(a)平均值;
(b)標(biāo)準(zhǔn)差;
(c)相對(duì)標(biāo)準(zhǔn)差;
(d)絕對(duì)誤差;
(e)相對(duì)誤差。
[已知Mr(KCl)=74.55,Ar(Cl)=35.4]


您可能感興趣的試卷