摘要
本文把双重抽样技术用于ＰＰＳ抽样，给出了该方法下总体总值的无偏估计量，估计量的方差及方差的无偏估计公式。
In this paper the method of double sampling is applied to PPS Sampling. We present a unbiased estimator of population total in the method and discuss the variance of the estimator and unbiased estimator of the variance.
出处
《数理统计与管理》
CSSCI
北大核心
1997年第2期32-36,共5页
Journal of Applied Statistics and Management
关键词
PPS抽样
双重抽样
无偏估计量
估计量
抽样
PPS Sampling, double sampling, unbiased estimator, Variance of estimator, unbiased estimator of variance.
