查询词典 standardized normal distribution

Finally, the physical index and compression index of silty soil from Yangtze Basf project are divided to three groups according to depth, then characteristic statistic are calculated to physical and compression index of three groups and mechanical index of all depths. After that, normal distribution 、 logarithmic normal distribution and extreme I distribution are fitted for physical and mechanical indexes. And Goodness-of-fit testing with X~2 method is done subsequently.

最后，将扬子巴斯夫工程粉质粘土的物理指标和压缩性指标按照埋深分为三组，计算了不同深度上粉质粘土的物理指标和压缩性指标以及所有深度上抗剪强度指标的特征统计量；然后用正态分布、对数正态分布和极值I型分布对各指标进行概率模型拟合并用x~2法对拟合优度进行了检验。

The soil pH, CEC and organic matter content ranged from 7.7 to 8.6, 11.9 to 28.7 cmolkg^(-1), and 3.0 to 27.9 gkg^(-1), and followed normal distribution, log-normal distribution, and negative binomial distribution, respectively. These three properties were significantly affected by land use type, landform, and soil type.

结果表明：黄土高原小流域土壤pH、CEC和有机质分别介于7.7~8.6、11.9~28.7cmolkg^(-1)和3.0~27.99kg^(-1)，分别服从正态分布、对数正态分布和负二项分布。3种土壤性质随地形、土地利用方式和土壤类型的不同差异很大。

If it is not normal distribution, the distribution function can be converted into normal distribution by data transform.

脑的基本功能是接收外界信息，对这些信息作出合适的处理并作出决策或行为反应，以适应外界环境。

At present the classic least square method, which is only adaptable to the data series of normal distribution, is usually adopted in statistic calculation. However, the actual series are usually pollutional distribution instead of normal distribution.

保证监测资料的可靠性是建立监控模型的基础工作，目前的统计计算一般采用经典的最小二乘法，该方法只适合于误差服从正态分布的数据序列。

In part two, the empirical results indicate that the predictive ability of SGT is much better than GT、ST、t and Normal distribution. SGT can correct not only fat-tailed property, but also defects the low kurtosis of GT and t distribution. For the volatility of asset return setting, the assumption of volatility of assets price is more appropriate than Normal and asymmetric distribution which was often used.

第二部分以实证结果显示偏态一般化t分配的配适能力较一般化t分配、偏态t分配、对称t分配和常态分配为佳，亦即当金融资产报酬率存在高峰态与厚尾现象时，偏态一般化t分配不仅可以解决常态分配所无法捕捉到的厚尾现象，亦可修正一般化t分配与对称t分配无偏态的缺点，对於资产报酬率波动性之设定，比过去常使用的常态分配与对称的分配更为适当。

By summarizing the distribution of average speed on different types of road and the statistical distribution rule,it is concluded that the distribution of average bus speed in Beijing follows the law of logarithmic normal distribution.

对北京市公共汽车平均车速的在不同类型道路上分布的情况和统计分布规律进行了总结，提出北京市公共汽车平均车速分布遵循对数正态概率分布规律。

Location-inventory system integrated design problem under stochastic demand The location-inventory distribution system design problem involving one supplier, candidate distribution centers and multiple retailers under normal distribution demand is studied in the background of building materials industry. Retailers adopt periodic reviewinventory policy, while distribution centers adopt continuous reviewinventory policy. Considering the trade-off between inventory cost, shipping cost and facility location cost, the integrated 2-echelon inventory control policies with incapacitated facility location model is presented.

随机客户需求下的选址-库存集成问题研究：以满足正态分布客户需求的型材配送物流为研究背景，研究了由单供应商、候选分拨中心和分销点构成的配送物流系统集成规划问题，分销点、分拨中心分别采用周期检查和连续检查库存控制策略，综合考虑库存成本、运输成本和设施成本之间的均衡关系，建立了二级库存控制策略与无能力约束选址集成规划模型。

After we got the estimated parameters of the model through the analysis of the normal distribution,the student-t distribution, the generalized error distribution and the skew student-t distribution, we calculated the dynamic Var and the test failure rate.

在分析正态分布、学生t分布、广义误差分布下和偏态t分布的基础上估计模型参数，得出了动态Var，并进行了失败率检验。

Abnormal distribution is not rare in practical measurement. Beta distribution contains not only central distribution but also non-central distribution. It is a good method to simplify the research of practical measurement distribution.

为了解决实际测量中的非正态分布的表示问题，本文采用含有两个参数的Beta分布来统示表示多种类型分布，并且解决了该分布的参数、特征值的计算。

The main topics include probability space, discrete distribution, continuous distribution, multivariable distribution conditional distribution and the sampling distribution theory.

课程方要课题含机率空间、离散分布、连续分布、多变量分布及抽样分布等的简介。

We are forbidden from giving money to these shoeless, skinny children, as this will perpetuate begging.

向光着脚，骨瘦如柴的孩子施舍是不可以的，因为要招来无休无止的乞讨。

It would be hard not to fall victim to some sharpeyed policeman.

要想不被某个目光锐利的警察抓到，谈何容易。