An academic processing and support platform focusing on journal databases, submission and review, and pre-typesetting.
唐婷婷
Wen Yuan (Middle School Edition) 2018 No.11
武警警官学院基础部工程数学教研室 四川 成都 610000
本文通过例题解析的形式对样本方差S2进行计算,在应用同一公式的不同形式(S2=1/n-1nΣi=1(Xi-X-)2和S2=1/n-1(nΣi=1Xi2-nX-2))计算样本方差S2时产生两个不同的结果,通过比较分析,找到误差产生较小的计算公式.
样本方差;计算;误差
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Language: 中文
CN:11-9275/G
ISSN:2096-627X
Publication Frequency: 月刊
An academic processing and support platform focusing on journal databases, submission and review, and pre-typesetting.