样本平均方差的无偏估计

样本平均方差的无偏估计

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contributed at 2018-12-04

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Affiliation:  
岳天祥编著
Email:  
yue@lreis.ac.cn
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Geography SubjectPhysical GeographyEcosystem

Detailed Description

样本平均方差的无偏估计

 

对在个体数为N的种群中进行随机抽样的样本容量n,其样本平均方差σ的无偏估计为:

式中,是指种群中所选择的元素i的利益变量,A是指样本标志集。

参考文献

Nusser SMBreidt FJFullerWA:自然资源动态调查的设计与评价。Ecological Applications1998,8(2)

How to cite

《资源环境数学模型手册》 (2018). 样本平均方差的无偏估计, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/9052b289-20b5-4ad9-bc10-9eaa072233bc
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Contributor

contributed at 2018-12-04

Authorship

Affiliation:  
岳天祥编著
Email:  
yue@lreis.ac.cn
Homepage:  
View
Is authorship not correct? Feed back

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