抽样

Sometimes called random samples, probability samples allow statistical inferences about the accuracy of sample estimates.

也称随机抽样。概率抽样用统计学的推断来说明样本的准确性。

Students will learn Descriptive Statistics, Probability and Random Variables, Probability Distributions, Sampling and Sampling Distributions, Statistical Estimations, and Hypothesis Testing in Statistics.

同学们将在统计学中学习叙述统计量的意义与计算、机率与随机变数、机率分配、抽样与抽样分配、统计估计、假说检定等基础统计方法。

It was found that 80% of the people recognized that using scientific methods to manage our forests is necessary nod 65% of the people recognized that, if necessary, timber cutting is stilt acceptable.

以系统抽样及随机抽样混合，在全省抽取样本850个进行分析，结果显示有80%的国人认为要以科学方法去经营台湾森林，65%的国人认为砍伐森林在森林正常经营上是需要的，表示大多数国人对森林经营的态度仍是理性的。

In chapter 4 based above two chapters, we disscuss sampling method of supplemented sample under both cluster sample and stratified sample having auxiliary information.

已有的 分层抽样和整群抽样方案都有自己的使用范围，在不适合的情况下使用效率很低。

Moreover, I extend the sampling problems from one population to two or more subpopulation.

并且由单一母体的简单随机抽样，扩展到分层抽样的问题。

15 hospitals and 2 937 residents were selected and studied through random and systematic sampling methods in Hainan Province.

采用分层抽样和随机抽样方法对15家医疗机构和2 937名疟区居民进行流行病学调查。

Systematic Process Sampling -- This type of sampling may be used when you are looking for patterns in your process data or making conclusions about a process.

过程系统抽样--这种抽样技术应用于发现过程的变化特征或对过程进行判定，举例，在呼叫中心，可能需要每5个电话抽一次。

In order to improve the reliability of field test data, by the estimation theory of sample size, a method of field test route choice is introduced based on wireless network planning.

为了提高路测采集数据的有效性，以根据抽样理论确定的抽样点数目作为指导，结合无线网络规划理论，提出了有效的路测路线确定方法。

To avoid the decrease in signal length in morphological wavelet decomposition, a novel morphological un-decimated wavelet based on multi-scale Top-Hat transformation is proposed.

针对形态小波分解过程的抽样引起信号长度逐层递减的问题，提出一种基于多尺度Top-Hat变换的形态非抽样小波构造方法。

The author presents a new sampling method based on a lot of experiments. Tractability of sampling rate and the speediness of this method is also confirmed.

作者在大量实验的基础上提出了IP包头标识字段取模抽样方法，该方法具有抽样比率易控制、效率高的优点。

I think he's learned how to approach hitters....

Johhny Damon说，『他已是最好的了，再没有人能够比他做的更好，我想他的球技已经完全成熟了，而且他也已经学会了如何去对付和压迫各种打击者。。。。。。

In effect, an 18 foot King Cobra could actually look down onto the average human being.

际上，一个18尺眼镜蛇王其实可以俯视到的平均人。