Although random sampling used for many surveys fails to cover large segments of the population, the procedure nonetheless offers insight into voting and consumption patterns.
虽然许多调查所用的随机取样不能覆盖大部分人口，但是这一过程使人们能更深刻地理解选举和消费的模式。
Most statisticians would not argue if you decided to reject the null hypothesis that the results can be accounted for in terms of random sampling variability from the null distribution.
如果您决定排除虚假设—结果可以按照零分布的随机抽样可变性获得，那么大多数统计师都不会有争议。
In this project the group categorized a random sampling of blog posts and weighed words for their emotional charge.
在这个研究项目中，研究团队会对随机抽样的博客文章进行分类，并对包含情绪词汇进行衡量。
SQS USES message sampling based on weighted random distribution, and it returns messages only from the sampled subset of servers when you query for messages.
SQS使用基于加权随机分布的消息取样，在查询消息时，它只从取样的一部分服务器返回消息。
It typically USES random number 5 generators to generate multiple scenarios of a model by repeatedly sampling values from the probability distributions for the uncertain variables.
它使用随机数5生成器通过重复地根据不确定变量的概率分布采样来生成模型的多重情境。
A layered sampling model for fuzzy comprehensive evaluation was developed based on simple random sampling methods.
在简单随机抽样方法的基础上提出了分层抽样的模糊综合评价模型。
Methods Random sampling was carried out in a survey for 161 community health service manpower by questionnaire.
方法采取随机抽样方法，对161名社区卫生服务从业人员进行问卷调查。
Also the results showed that the Stratified Random ClusterSampling is an adequate sampling method for the genetic variation analysis of yellow cattle population.
同时研究表明，系统随机整群抽样是进行黄牛群体遗传变异分析的最适抽样方法。
Comparison with other tested heuristics verifies that the proposed random sampling method is significantly superior to other heuristics for scheduling resource-constrained multiple projects.
与其他多项目调度启发式算法的比较和统计检验，说明随机抽样算法显著优于这些常用的启发式算法。
In order to compensate the nonlinear errors induced by the rectification for high frequency vibrations in the inertial measure unit (IMU), the paper presents a new random sampling method.
为了补偿由于惯性敏感元件高频振动整流所引起的非线性输出误差，研究一种新的补偿方法——随机采样法。
Methods According with the methods of the forth epidemiologic sampling survey for tuberculosis in our country, the method of stratified cluster random sampling was use in this survey.
方法根据全国第四次结核病流行病学抽样调查方案，采用分层整群随机抽样方法抽取调查点，然后根据调查结果进行分析。
Methods 7 ones for rural workers' children from all the 42 primary schools in the district have been surveyed through random sampling.
方法采用分层随机整群抽样的方法，从全区42所民工子弟小学中抽取7所学校，通过问卷调查的形式对学生展开调查。
Methods According to the national guidelines, clustered random sampling was made for the survey.
方法按照全国统一制定的调查方案，按病种以分层整群随机抽样的方法确定调查点。
The recommended sample size for a systematic random sampling is 500 children.
系统随机抽样的推荐样本大小是500名儿童。
Methods Cluster random sampling was used for investigation of 39 villages selected from 13 counties.
方法采用分层整群随机抽样的方法，对13个中签县市39个村(点)进行调查。
Define and apply techniques for assuring data accuracy and integrity such as random sampling, stratified sampling, sample homogeneity, etc.
定义和应用确保数据准确和完整的技巧，如随机抽样法、分层抽样法、样本同质性等。
Multistage stratified random sampling was conducted an interview survey in status of illness for children under 2 years old.
采用多阶段分层随机抽样法对2岁以下儿童进行疾病状况询问调查。
A hologram memory with high quality and high information storage density for analog information such as characters, lines and portraits has been made by sampling mesh and random phase shifter method.
用采样及随机相移器法实现了对文字、线条、人象等多种模拟信息的高密度，高质量的全息存贮。
Cluster and random were carried out for sampling in each group.
组内取样采用随机法和聚类法。
The paper introduces multiple imputation (mi) for missing data in stratified random sampling, and discusses the ordinary method of mi with ignorable nonresponse, and illustrates the essential steps.
介绍分层随机抽样条件下多重插补法处理缺失数据的基本思想，分析可忽略无回答的分层随机抽样建立多重插补的常用方法，并通过实例加以说明。
The use of random sampling methods on body composition in Hunan Province civil service data sampling, data taken from the civil service composed of 100 samples for analysis.
运用随机抽样方法对湖南省公务员身体成分数据进行抽样，抽取100名公务员数据组成样本进行分析。
Health education was given to 10 of the 48 parents whose children were hospitalized for more than 2 weeks selected by random sampling.
以面对面访谈的方式对48位患儿的家长进行调查。 随机对1 0名住院时间超过2周的患儿家长进行健康教育。
The paper proposes new separate ratio estimators for population mean using known skewness coefficient of auxiliary variable in stratified random sampling.
本文在分层随机抽样下通过使用辅助变量的偏斜系数提出了几个总体均值的估计。
Methods: Cluster random sampling was used for door-to-door questionnaire survey. Using self-made questionnaire drew 386 elderly at random from 12 communities of Wenzhou City.
方法：采用整群随机抽样入户调查的方法，用自制问卷对温州市城区12个社区386名老年人进行调查。
Methods: Cluster random sampling was used for door-to-door questionnaire survey. Using self-made questionnaire drew 386 elderly at random from 12 communities of Wenzhou City.
方法：采用整群随机抽样入户调查的方法，用自制问卷对温州市城区12个社区386名老年人进行调查。
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