查询词典 sampling distribution

This course includes descriptive statistics, probability distribution, sampling distribution, statistical estimation, hypothesis testing, analysis of variance, chi-square tests, simple linear regression, multiple regression, and nonparametric statistics.

本课程内容包括叙述统计、机率分配、抽样分配、统计估计、统计假设检定、变异数分析、卡方检定、简单线性廻归、复廻归、无母数统计。

Monte Carlo is a method that approximately solves mathematic or physical problems by statistical sampling theory. When comes to Bayesian classification, it firstly gets the conditional probability distribution of the unlabelled classes based on the known prior probability. Then, it uses some kind of sampler to get the stochastic data that satisfy the distribution as noted just before one by one. At last, it can obtain the posterior probability distibution of each unlabelled classes by analysing these stochastic data.

蒙特卡罗是一种采用统计抽样理论近似求解数学或物理问题的方法，它在用于解决贝叶斯分类时，首先根据已知的先验概率获得各个类标号未知类的条件概率分布，然后利用某种抽样器，分别得到满足这些条件分布的随机数据，最后统计这些随机数据，就可以得到各个类标号未知类的后验概率分布。

On the north and central sampling belts species altitudinal distribution is markedly lower on the east-facing aspect than on the west-facing aspect, whereas on the south belt species altitudinal distribution between the two aspects does not differ significantly.

结果发现在北边及中间的样带东向坡的物种分布明显地比西向坡的低，但在南边的样带两个坡向物种海拔分布的差距并不显著。

The key technologies of Grid Method including grid divided in basin, impact radius of rainfall and number of reference rainfall stations have been discussed with example. The parameters of Grid Method have been selected through trial and error. Using simple random sampling to simulate the failure to collect rainfall, the relation between surface rainfall calculation error and station density, station distribution, uneven spatial distribution of rainfall has been sought.

论文探讨了流域网格剖分、降雨影响半径、搜索半径范围和参证站数量等关键技术，研究了网格法参数的优选，并采用简单随机抽样模拟降雨缺测情况，给出了面雨量计算误差与流域站网密度、均匀度、降雨分布不均匀性指标的关系。

The investigations included the following:（1） estimation of sea ice distribution by ship-based observations between Middle Weddell Sea and Prydz Bay;（2） estimation of sea ice distribution by aerial photography in the Prydz Bay;（3） direct measurements of fast ice thickness and snow cover, as well as ice core sampling in Nella Fjord;（4） estimation of melting sea ice patterns near the ZhongShan Station; and （5） observation of sea ice early freezing near the ZhongShan Station.

包括：（1）基于走航观测的威德尔海至普利茨湾之间海冰分布研究；（2）基于航空拍摄的普利茨湾海冰分布研究；（3）纳拉海峡固定冰和上浮雪厚度钻孔测量以及冰心钻取；（4）中山站附近融化冰的分布研究以及（5）中山站附近海冰早期冻结过程观测研究。

Through compared with the difference of the sampling inspection's OC curves between existent and nonexistent inspection error by utilizing grouping method, we get the conclusion that all the traditional methods are designed on the premise that there is none inspection error exist, so it would terribly depress the probability of acceptance and couldn't veritably reflect the quality of the lot for inspection, if the inspection error is exist when sampling inspecting.

同时通过对集团检验错误存在与否的抽样检验特征曲线的比较，指出：以往的集团抽样检验方案设计，都是在假设无检验误差前提下设计的，在抽样检验中，若存在检验错误，会严重影响抽样检验的接收概率，使抽样检验结果不能客观地反映检验批的质量。

Sampling error or allowable error is conventionally accepted between 1% and 10%; however, it is suggested that sampling error should be carefully assessed in light of the nature of the derivation of the population proportion and other aspects of the initial data.

抽样误差或允许误差是接受常规的1 ％和10 ％，但是，有人建议，抽样误差应当认真评估根据的性质推导的人口比例和其他方面的初步数据。

Meanwhile, the part of software has realized the function of the alternating electricity parameter analysis, the directing electricity parameter analysis and the demonstration, which is taking the sampled data in a sampling cycle as the examination object, and carrying on the analysis with the digital signal processing technology to the sampling data, and then programming with single chip.

软件部分则是以一周期内采集的数据为检测对象，用数字信号处理技术对采样的数据进行分析，用单片机进行编程，实现交流电参量和直流电参量分析及显示功能。

A chessboard-sampling method was used to count the apothecium number in 1 m 2 of each sampling site in the field. The results showed that the apothecium of

结果表明： 1997 年春油菜菌核病菌田间子囊盘于 6 月中旬始见，之后其数量出现快速增加，并分别在 6 月 29 日、 7 月 8 日及 7 月 26 日至 8 月 2 日间出现 3 次高峰期。

We summarized the methods and application of wildlife surveys in China, and analyzed the problems and faults with these methods. We introduced the method of map strip sampling which we used in a survey of argali resources in all international hunting grounds, and compared the results and differences in application with line transect sampling.

中文摘要：本文全面总结了我国野生动物调查的主要方法及应用，分析了已有方法在应用中的问题和缺陷，介绍了国际狩猎场的盘羊资源调查方法--地图样带法，并比较了该方法与样线法得出的调查结果差异和两种方法在实际应用中的区别。

These findings or recognitions will be the main directions leading our further studies of biogeochemical cycling nutrients in karstic and other ecological systems.

这些认识是我们将来系统深入开展喀斯特以及其他流域生态系统物质生物地球化学循环研究的重要方向。

I hadn't seen any one of them, but only Wingy whom I had seen from a photo.

我没有见过他们任何一个人，唯一的Wingy也只是在照片上看过一两眼。