random sampling

This study adopted two-stage random sampling method. The valid subjects were 300.

本研究采二阶段随机抽样方法, 有效样本共300位.

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Methods Stratified chester random sampling.

方法采用分层整群随机抽样的调查方法.

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The Stratified Random Sampling Method and Small Sample Testing

分层随机抽样方法与小子样检验

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Random sampling method was adopted in this experiment.

本分析采用随机取样法，对贵州威宁引入的新西兰考利代羊羊毛品质进行了全面测定。

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The participants of the research were selected by random sampling from the English postgraduates of College of Foreign Studies in Guangxi Normal University.

本文为实验研究报告，以随机方法抽取广西师范大学外国语学院课程与教学论、英语语言文学、外国语言学及应用语言学专业研究生作为研究对象样本。

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Methods: The number of samples was calculated with the optimum allocation stratified random sampling survey.

应用最优分配随机分层抽样方法确定调查点.

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The concrete methods contain: 1 Random sampling investigation method.

具体方法主要包括：（1）采用随机抽样调查方法。

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This study is a significant reference to the composite random sampling of bulk materials in practice.

该项研究对于大宗货物的实际随机取样具有重要参考价值.

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Methods Use random sampling method. 50 cases in each group.

方法采用随机抽样法分成2组，每组50例。

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METHOD Random sampling study and collect data by questionnaire survey and examination.

方法采取整群随机抽样,信函问卷、实地测试等调查.

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Survey is also available web for input from clubs that were not in the random sampling.

调查也扩及由扶轮社于网上输入资料,这并不包括在随机抽样中.

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Two kinds of estimators were compared under PPS sampling and simple random sampling with replacement.

本文在PPS抽样方案和有效回简单随机抽样方案的情形下构造了这两种估计并精确比较了它们的优劣.

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Methods 917 freshmen in Five medical colleges were investigated by random cluster sampling with personal evaluation inventory ( PEI), parental rearing style scales, and family environment scale ( Chinese version). The datum was analyzed by the means of correlation and regression.

方法使用《PEI评价问卷》、《父母养育方式问卷》、《家庭环境量表》对五所医学院校新生917人进行随机整群抽样调查，对调查结果进行相关、回归等分析。

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Methods Cluster sampling and random sampling Methods: Were used to choose the subject.

方法采用整群随机抽样和单纯随机抽样方法确定调查对象.

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Methods With a random-sampling method, the patterns of use of antibiotic drugs were reviewed in 840 cases ( 1014 surgical operations) from the Plastic Surgery Hospital, the Chinese Academy of Medical Sci-ences.

方法随机抽取整形外科医院1997～1998年840例1014人次手术病案，统计分析应用抗生素的状况。

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Methods Making research on 1021 patients by random sampling.

方法采用随机抽样的方法调查1021例患者。

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The generalization of post stratification from the simple random sampling to complex design is discussed.

此外,我们探讨复杂抽样下,该估计值的推广.

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[ Methods] 20% MR in the hospital in recent 5 years were investigated with random sampling. The contents of investigation concerned about 7 main parts and 92 items according to the guide of MR handwriting, published by Health Department of Guangdong Province.

[方法]对某医院近5年内各科病历随机抽取20%进行抽样调查，根据《广东省病历书写规范》中7大项目及所包含的92个子项目进行常见病历缺陷统计。

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Methods Conded study was by random sampling and under the guidance of specially trained medical personnel by using the Symptom Checklist 90 ( SCL-90).

方法对浙江工商大学入学1周内的大一新生，在统一培训的医务人员指导下，采用SCL-90症状自评量表进行随机采样分析。

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Random sampling method for fuzzy reliability analysis of machine parts based on experiential data

基于经验数据的机械零件模糊可靠性分析随机抽样法

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CLAP adopts the random-sampling technique to make the clustering algorithm to be more efficient.

CLAP算法通过使用随机抽样技术,提高了聚类算法的效率.

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In a simple random 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.

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To investigate farmers by spot observation and random sampling methods.

运用现场观察和随机抽样问卷调查的定量方法对农户进行调查。

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DESIGN: Random sampling test was conducted to postmenopausal women.

设计：以绝经妇女为研究对象，随机抽样检测。

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A mathematical probable model and random sampling method are illustrated, too.

具体说明方法的数学概率模型及随机抽样方法。

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Method: Random sampling in late growing period.

方法：于生长后期定期随机采样调查。

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Quality Assessment for Attribute Data in GIS Based on Simple Random Sampling

基于一般抽样原理的GIS属性数据质量评定方法

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Methods A random sampling inspection could be combined with special-purpose rectification.

方法突击抽样检查和专项整顿相结合,抽样比对.

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Methods Hospitals were selected and studied with random sampling method.

方法采用随机抽样方法对辖区内医疗机构进行流行病学调查。

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We did the random sampling of five pieces per batch of 100.

我们在每批一百件的货品中取五件随机抽样.

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