摘要
本文证明了在不放回抽样条件下,样本平均数不仅是总体均值的无偏估计,而且还是相合估计。
In this paper , the author proves that sample average is both the non-devia-tion estimation and consistent estimation of overall mean value.
出处
《山西大同大学学报(自然科学版)》
1996年第3期9-11,共3页
Journal of Shanxi Datong University(Natural Science Edition)
关键词
不放回抽样
无偏估计
相合估计
No replacement of samples
non-departure estimation
consistent estimation