- 双语例句 更多例句
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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此外,我们探讨复杂抽样下,该估计值的推广.
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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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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 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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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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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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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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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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应用最优分配随机分层抽样方法确定调查点.
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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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- 相关词组
- at random任意地，随便地;信;横七竖八;胡乱;
- random samplen.随机抽样调查;
- paired sampling配对取样;
- timing sampling定时采样，时间量化，脉冲调辐;
- areal sampling[医]分布区取样;
- beaker sampling杯选试样;
- random allocation随机分配;
- random blocks抛筑块体;
- adaptive sampling适应性抽样;
- sampling analysis抽样分析;
- random select随机选择;
- completely random完全随机;
- random selection随机选择，杂乱选择;
- random crime随机犯罪行为
- air sampling空气取样;
- random accessn.随机存取;
- work sampling technique工作样本技术;工作样本选择
- 今日热词
- 热门搜索
- trade n.贸易，交易;行业;职业，手艺;营业额;v.做生意，从事贸易;营业;交换;互相做;（在证券交易所）交易;
- novel n.小说;adj.新颖的;
- separate v.（使）分开/分离/分散;分割，划分;相隔，隔开;分居;区分;
- despite prep.尽管;虽然;不由自主;即使;尽管(自己)不愿意n.恶意;侮辱;怨恨;轻蔑
- outspoken adj.直言的;坦率的;毫无保留的;心急口快;
- fool for you 为你痴狂;傻傻为你;你的傻瓜；为爱痴傻
- focus v.集中;调焦;聚焦;集中光束;n.焦点;中心点;聚焦点;震源;
- lie to me 别对我撒谎;
- ballet n.芭蕾舞;芭蕾舞剧;芭蕾舞团;
- may the force be with you 愿原力与你同在;愿力量与你同在
- creep v.蹑手蹑脚地移动;缓慢移动;不知不觉地发生;逐渐增长;n.讨厌鬼; 马屁精;
- console v.安慰;抚慰;慰藉n.(机器、电子设备等的)控制台，操纵台，仪表板
