And statistical controls are unlikely to compensate for a poor sampling strategy that does not yield a sample representative of the population to which we want to generalize.
一个差劲的采样策略并不能产生一个我们需要的代表总体的样本,而统计管理不太可能弥补这一点。
This is a truly unrepresentative sample, both in sampling strategy and its make up, and statistical controls cannot compensate for this.
事实上这是一个非典型的样本,不管是在抽样策略和它的组成上都是如此,而且统计管理也不能弥补这一缺陷。
However, if brewers wanted their Sake to be known as superior to most, they would submit a sample to the National Tax Office for sampling.
然而如果酒商们希望他们的清酒被认定为一级或特级的他们就得向国家税务调查局提交样品以供鉴定。
All reported margins of sampling error include the computed design effects for weighting and sample design.
所有报告的样本误差比率包括了加权和抽样设计设计效应计算在内。
In such case, the Buyers may, if so requested, send a sample of the goods in quetion to the Sellers, provided that sampling is feasible.
在此情况下,凡货物适于抽样者,如卖方要求,买方可将样品寄交卖方。
In explicit UPDATE STATISTICS operations in MEDIUM mode, a new SAMPLING SIZE option in the resolution clause specifies the minimum number of rows to sample for column distributions.
在使用MEDIUM模式的显式的UPDATESTATISTICS操作中,可以在resolution子句中使用新的SAMPLINGSIZE选项为列分布抽样指定最小行数。
In explicit UPDATE STATISTICS operations in MEDIUM mode, a new SAMPLING SIZE option in the Resolution clause can specify the minimum number of rows to sample for column distributions.
在MEDIUM模式的显式的UPDATESTATISTICS操作中,resolution子句中新的SAMPLINGSIZE选项可以指定列分布进行抽样的最少行数。
In the example script provided, the sampling rate is every two seconds, which provides rapid feedback, but generates quite a bit of sample data in a short period of time.
在本文提供的示例脚本中,抽样频率是每2秒抽样一次,这样可以提供快速的反馈,但是在短时间内会产生较多的样本数据。
I 10u means to perform hardware sampling with 10 microseconds as the sample interval.
i10u表示以10微秒的取样间隔执行硬件取样。
The Response Time Breakdown page allows you to set the type of data that you see during a run, the sampling rate for that data, and whether data is collected from all users or a representative sample.
页可以让您设置您要在运行时看到的数据类型、这些数据的样本率以及收集所有用户的数据还是特定用户的数据。
LIMITATIONS: the fecal sampling method is standardized, but the sample size depends on fecal consistency.
局限性:粪便取样方法已经被标准化了,但是样本大小取决于粪便的稠度。
In sampling, we choose a small number of items which we think are typical of the whole and examine the sample.
在采样时,我们选择少量我们认为是代表整体的东西,并对这个样本进行研究。
Whatever sampling percentage you choose, runstats allows you to sample rows (Bernoulli sampling) or pages (system sampling).
无论选择多大的抽样百分比,runstats允许对行(Bernoullisampling)或页面(system sampling)进行抽样。
The impact of sampling on the sample result, related to the Heisenberg Uncertainty principle.
抽样方式对抽样结果的影响,这与海森堡测不准原理有关。
Point sample and solvent evaporating integration, seven channels can be automatically sampling, spot diameter less than 3 mm.
点样和溶剂挥干一体化,七通道可同时自动点样,斑点直径小于3毫米。
Only sample information from a subset of users: If you set the detail level to High or Medium, set a sampling rate to prevent the log from getting too large.
Onlysampleinformationfroma subset ofusers:如果您设置了detaillevel为high或者Medium,则需要设置samplingrate以防止日志变得过大。
Random sampling: random sample of 50 boys, 50 girls were 100 students conducted a questionnaire survey.
随机抽样:随机抽取50名男生,50名女生共100名学生进行问卷调查。
The sampling frequency and the sample size can be adjusted according to the effectiveness of the segregation between the adjacent Grade A and B zones.
可根据B 级洁净区对相邻A级洁净区的影响程度,调整采样频率和采样量。
The Percentage Sampling transformation creates a sample data set by selecting a percentage of the transformation input rows.
百分比抽样转换通过选择转换输入行的百分比来创建样本数据集。
Sampling technique and sample preservation are very important factors for Marine geological researches.
海洋地质学研究中对样品的采取技术和保存至关重要。
The papers explanation of the minimum sample rate in the sampling theorem provides a theoretical basis for teaching and research.
抽样定理中最低抽样率的明确说明为教学和理论研究提供了进一步的理论依据。
Sampling method, sample storage, optimum chromatographic condition test have also been studied.
研究了采样方法、样品保存和最佳色谱条件等。
Though examples of common signal and sine signal, by the frequency spectrum graph and theoretical analysis, the minimum sample rate of the sampling theorem is made clear.
以一般信号和正弦信号为例,通过理论分析和频谱图示意,对抽样定理中最低抽样率的取值进行了明确的说明。
If the sample of the sampling with order, we will refund the cost of the sampling to you.
如果打样的样品有订单,我们将会将打样的费用退还给你们。
The inspecting value of sample for asphalt content sampling of asphalt mix is normal distribution.
沥青混合料沥青含量抽样检测的样本检测值服从正态分布。
Can use the sample standard sampling.
能使用抽样标准进行抽检。
The findings supply a theoretical basis for selecting sampling mode and sample size for the study of the disease.
以上结果为在病害调查中确定取样方式与样本大小提供了理论基础。
Through the research of comprehensive field sampling, sample analysis, helium content calculation and data processing and so on, we obtain the application technique.
通过野外取样、样品分析、含量计算及资料处理等系列技术方法的研究,获得了该仪器的一套基本可行的应用技术。
When sampling, the speed of sample gas is similar to the actural pipe gas by controlling the sample gas flow.
取样时通过控制采样流量,使样气流速模拟取样点管道中煤气流速达到等速取样的条件。
The methods of this thesis are literature and survey. The author selected two Suzhou Vocational Colleges as a sample through convenience sampling questionnaire.
论文运用文献法和调查法,选取苏州市的两所高职院校为样本,通过方便抽样发放问卷。
应用推荐