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- large sampling variation 大样本变差
- But she cautioned that so few people in the survey reported robberies that the bureau cannot be certain whether those figures represent a true increase or a random sampling variation. 但她警告说,调查中向***报告抢劫案的人太少了,这使得统计局无法确定这些数据是真实增加了还是只是一个随机的变量。
- Evaluation of the Comparative Method of Two Large Sample Means. 两个大样本均数比较方法的评价。
- The test was standardized on a large sample of students. 这次测试以一大批被测学生为标准。
- A list of some of the most common infinitives, along with a sample variation, as well as their past participle forms, appears in the table below. 希望这篇意大利语不规则过去分词能对你的外语学习有所帮助。
- The larger sampling spacing is advantageous to enhance the measurement and data processing efficiencies for near field antenna measurements. 近场天线测量中,采用大的采样间隔,有利于提高测试和数据处理的效率。
- By use of the linearity characteristic of the astigmatic system, the high axial resolution is achieved at a larger sampling interval. 利用像散特性曲线中的线性关系,实现在较大采样间距下获得较高的轴向分辨率。
- The concept is useful in assessing the large sample properties of econometric estimators. 在评价经济计量估算值的大规模抽样特征时,这是一个有用的概念。
- He bit off a large piece of the apple. 他咬下一大块苹果。
- Inasmuch as statistical analyses require fairly large sample sizes, the cost of such a program becomes prohibitly high. 由于统计分析需要大量的试验数据,因此这个计划的费用是相当高的。
- The customers at the grocery stores represented a large sample of the Danish population, they said. 研究人员称,食品店顾客的饮食习惯在丹麦人口中具有普遍代表性。
- A new study is the first to establish a link between colic and depression using a large sample of women. 一项新的研究通过大量妇女的样本,首次建立了婴儿哭闹和母亲抑郁之间的关联。
- Conclusion: Psychiatrical clinic trials should be designed according to the GCP protocols with large sample size. 结论:精神科药物疗效研究应遵循GCP原则,加强大标本、设计合理的高水平研究;
- Results Simulation study shows that parameters estimations are approximately unbiased in MCMC when large sample size. 结果模拟研究表明大样本时MCMC法可得到近似无偏的参数估计。
- Used large sample datum to train the BP network, formed an identifiable and rememberable non-linear forecasting system. 利用大样本数据对网络进行了训练,形成了有识别和记忆功能的非线性预测系统。
- Based on the statistics of a large sample of data, the Boltzmann constant is determined at a relative error of 4%. 基于对大量数据的统计分析,计算出了玻尔兹曼常量,与理论值的相对误差约为4%25。
- Is it possible for an estimator to be biased in finite sample but consistent in large sample? 一个估计量是否有可能在有限样本中是有偏的但又具有一致性?
- At present, heteroscedastic data can only be analyzed by group test method that requires large sample. 对于异方差问题目前工程上只能采用成组试验方法,因此试验量很大;
- Large billboards have disfigured the scenery. 大型告示板已破坏了景色。
- It thus requires the caching of at least the smallest or the largest samples. 因此,需要缓存至少个最小样本或个最大样本。