sample mean estimator
常見(jiàn)例句
- We give the approximation formulas of the variance of the sample ratio estimator for a population mean and its asymptotically non-biased estimator in multi-stage sampling.
討論多階段抽樣比率估計(jì)及其樣本量選擇的問(wèn)題 ，給出了比率估計(jì)抽樣均方誤差的近似公式及其漸近無(wú)偏估計(jì)的公式 。 返回 sample mean estimator