purpose sampling是什么意思

网络释义

用法例句

Little has been said about purpose sampling which is used much more in practice.

对使用较多的有目的抽样则阐述较少。

Study on Education Research Sampling--Purpose Sampling;

教育研究的抽样问题——有目的抽样

Q: Would different sample size for different questions affect the sampling error?

问：个别题目的样本数目会否影响抽样误差？

A Multi-Pass Biased Random Sampling Method for Scheduling Multiple Projects;

随机抽样算法在多项目调度中的应用

It is for a discussion of area determination by transect sampling.

这是有关截距抽样估测面积的讨论。

Define the sample plan for all Test/ Measurement/ Inspection.

决定所有测试/验/量的抽样方案。

The man affected a taste for abstract art

那人装作对抽象艺术有鉴赏力的样子。

Ranked Set Sampling Method and Parameter Estimation Based on This Method;

有序抽样方法及此方法下的参数估计

A Study on the Estimation Problem of Response Variable under Non-ignorable Selection Mechanism;

在不可忽略抽样机制下目标变量的估计问题

The Application of Iterative Method to Sample Survey of Multi-Objective Population;

迭代方法在多目标总体抽样调查中的应用

A Latin Hypercube Sampling Based Multi-Objective Evolutionary Algorithm

一种基于拉丁超立方体抽样的多目标进化算法

Available estimates suggest that the contribution of aircraft emissions to local destruction of stratospheric ozone is at present less than 1%.

有资料显示，目前飞机排放气体对平流层抽样的区域破坏作用小于1%。

An estimate based on a sample survey in 1987 shows that in the mainland of China there are about 51 million disabled people, or 5 percent of the population.

根据1987年抽样调查推算，中国大陆目前约有5164万残疾人，占人口总数的5%。

Some new offices are set up by drawing staff members from the basic units.

还有的从下面抽人，搞这样那样的办公室。

And, of course, all the alternatives of biareal plot sampling are possible for triareal plot sampling.

当然，两种面积样地抽样的所有可选方案对三种面积样地的抽样都适用。

sampling distribution of sample mean

样本平均值的抽样分布

A Discussion on Statistics Theory of Audit Sample--Attributes Sample;

试论审计抽样的统计学原理——属性抽样

Discussion on multiple objective optimum sampling number analysis method of industry at Province level;

省级工业多目标抽样最佳样本数目分析法初探

provisions on relevant statistical methods, sampling procedures and methods of risk assessment;

有关统计方法、抽样程序和风险评估方法的规定；