2) 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。
3) unsimple random sample
非简单随机样本
1.
Samples that can be obtained in these trails are independent with each other,but have diverse distributions,they are called unsimple random samples.
这样试验得到的样本,虽相互独立,但分布不同,是一个“非简单随机样本”。
4) simple random sampling
简单随机样本
1.
In this article,students actually present at exams are regarded as simple random sampling of all the students,and the sampling and assessing ways are applied.
将实考考生看作为考生总体的一个简单随机样本 ,应用抽样估值的方法 ,在若干合适的概率分布模型下 ,收集和推演了考生总体合格率的一些估计公式 ,以估计有考生缺考时 ,考生总体的合格率 。
5) Sampling random sampling
简单随机抽样(SRS)
6) simple-random-sampling
简单随机采样
补充资料：纯随机抽样
纯随机抽样
【纯随机抽样】亦称“简单随机抽样”。按随机的原则直接从总体N个单位中抽取n个单位作为样本，保证总体中每个单位在抽选时都有相等的被抽中机会的抽样方法。它是抽样中最基本、最单纯的方式，适用于均匀总体。
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