Diekmann, M., Kühne, A., Isermann, M. (2007) Random vs non-random sampling: effects on patterns of species abundance, species richness and vegetation-environment relationships. Folia Geobot. 42: pp. 179-190Die
随机抽样；随意采样
Sampling methods are used by researchers to predict outcomes and draw conclusions when it is not possible to gather data from every member of a population. This lesson will describe the advantages and limitations of two such methods: random sampling, which is a type of probability sampling, and...
random sampling随机抽样(random sampling)是统计学中遵循随机原则选取样本的方法,每个个体被选中的概率已知,能够通过样本科学推断总体参数并计算抽样误差。其核心特点在于随机性和可量化误差,主要分为等概率与不等概率两类,并与非概率抽样或其他结构化抽样方法形成对比。 核心特点 随机抽样的核...
随机抽(取)样(random sampling) 相关知识点: 试题来源: 解析 随机抽(取)样是指保证调查对象总体中每个部分都有同等被抽中的可能的调查方法,是一种完全依照机会均等的原则进行的抽样调查,被称为是一种“等概率”。随机抽样有四种基本形式,即简单随机抽样、系统抽样、分层抽样和多级抽样...
samplingn. 取样,抽样;抽样检验,抽样调查 quasi random拟随机 random accessadj. [计] 随机存取的 non sampling非抽样的 frequency sampling【计】 频率取样 pseudo random【计】 伪随机的 better than randomadj. 更有可能的;可能性更大的 最新单词
In a simplerandom sampling, the sample mean is an unbiased estimate of the population mean. 在简单随机抽样中, 样本均值是总体均值的无偏估计. 互联网 CLAP adopts the random - sampling technique to make the clustering algorithm to be more efficient. ...
两者还是有不同的。haphazard sampling是随意抽样，不是真正的随机。1、非概率抽样 （1）随意抽样（haphazard sampling)，也称任意抽样。（遵循简便性原则）随意地或任意地从总体中抽取样本。优点：简便易行，成本较低。缺点：调查范围有时难以真正涵盖所有总体单位，样本的偏差有时比较大，调查或推断的结论...
random sampling n.the selection of a random sample; each element of the population has an equal chance of been selected 学习怎么用 双语例句 By fusing it with a robust estimation technique of the type of randomly sampling minimal subsets, we develop the robust version of the algorithm. ...
Define random sampling. random sampling synonyms, random sampling pronunciation, random sampling translation, English dictionary definition of random sampling. n. a method of selecting a sample from a statistical population so that every sample that coul