抽样

It would be easy to misinterpret results from such a small sample.

从这样小的一份样出发容易得出曲解的结论。

Methods To collect data by cluster sampling and analyze data by polychotomous Logistic regression.

方法采用整群样调查搜集资料,采用多分类回归分析筛选影响因素。

Superpopulation model is a bridge between survey sampling and other branches of statistics.It is helpful to study sampling theory with the tool of superpopulation models.

摘要超型是样理论与统计学其它分支联系的桥梁，借助于超型研究样理论是一个有前途的方法。

The results of tests show that the new subsampling method outperforms other subsampling methods in less extrema and convergence performance of the normalized mutual information.

实验结果表，样方法可以有效地减少局部极值点，提高归一化互信息测度的收敛性能。

Via examining, have 40 kinds eligibly, sampling percent of pass is 58.8% , among them 10 kinds belong to the product with quality serious problem.

经检验，合格的有40种，样合格率为58.8%，其中有10种属于质量问题严重的产品。

Indicate epidemiology investigation , confirm on the grounds of international sampling investigation, major part in the cancerogenic patient who has a smoke is a passive smoker.

流行病学调查表，据国际性的样调查证实，吸烟致癌患者中的大部分是被动吸烟者。