1) single extraction
简单抽堤
3) simple random sampling
简单随机抽样
1.
The simple random sampling plan and stratified random sampling plan has been introduced and the application means and effects of which also has been presented,it has some characteristics such as material precision and obvious reduce of sample size,and rational advice has been presented.
介绍了简单随机抽样和分层随机抽样方法及其在检测中的应用方法和效果。
2.
This paper detailed introduced the two sampling methods, simple random sampling, and stratified sampling, and analyzed the features of the two methods.
我国现行既有房屋构件质量评定检测抽样技术存在明显的缺点,本文详细介绍了以数理统计为基础的简单随机抽样和分层随机抽样两种方法,分析了两种方法的特点。
3.
This paper introduced several methods about the concrete strength inspection: the sampling method given by the present specification; simple random sampling without replacement; stratified sampling .
具体介绍了砼强度检测抽样的几种方法:现行规程抽样法;简单随机抽样法;分层抽样法。
4) Sampling random sampling
简单随机抽样(SRS)
5) simple sampling without replacement
简单不重复抽样
6) Simple cluster sampling
简单整群抽样
补充资料：抽抽
1.皱;瘦小。 2.抽动。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条