查询词典 variance

The anti-noise performance of the improved method is also investigated in this paper,and the variance equation of the frequency estimation error in the presence.

分析了改进方法的抗噪声性能，推导出了在高斯白噪声背景下频率估计误差的方差公式，并通过仿真计算验证了推导公式的正确性。

This paper researches the estimation variance of the maximum likelihood estimator of the parameter with p norm distribution.

研究了具有p范分布的参数的极大似然估计的估计方差。

Secondly, the combination in concept and problem teaching can enhance profound comprehension of Exclusive Events and Independent Events. Finally, because Distribution is basic knowledge in teaching probability, meanwhile, the calculation for Expected Value and Variance also are based on Distribution. Thus, Distribution is the most important in teaching them, it needs to give more emphasis.

其中计算机模拟手段在概率的频率定义教学中效果明显，并且直观模型在古典概型教学中的作用也相当明显；其次，通过概念教学与解题教学的结合可以帮助学生深刻理解互斥事件与独立事件；最后，随机变量的分布列作为概率基础知识，期望以及方差的计算都是以分布列为基础的，因而，强化分布列的教学是这部分内容的重中之重。

P. 71 We will call this thesis—the thesis that there are many meanings for the existential quantifier that are equally natural and equally adequate for describing all the facts—"the doctrine of quantifier variance"(Hirsch 2002b, Sider 2009). What exactly are the candidate meanings in question?

我们会说这个主张（存在量词有多个意思，都同等地自然和足以表达所有事实）是"量词可变"(Hirsch 2002b， Sider 2009)。

Based on it, the sampling data is disposed properly by applying the expectance and variance of statistic theory and the discharging state can be identified exactly.

在此基础上，采用统计学中数学期望和方差的概念对间隙放电电压采样数据进行了有效地数学分析，从而可以实现间隙放电状态的准确识别。

The variance of stress about particular points that situate on the edge where maximum stress point locates as the object function, we introduce complex method to optimize the position of exterior load point about pylon along the voyage direction and the angle between anti-swing stop and right-and-left symmetry plane about pylon under the determinate loads. We also compare the unoptimizable stress curves with the optimized to validate the feasibility and correctness of the optimization method.

将挂架上最大内应力点所在棱边的特征点的内应力方差作为目标函数，采用复合形方法对一定载荷状态下，挂架外载荷点沿航向的位置及防摆止动器与挂架左、右对称面间的夹角进行了优化设计，并将优化前、后的内应力曲线进行比较，验证了优化方法的可行性、正确性。

The predictor for self-concept was extrapyramidal symptoms, which accounted for 11.8% of total variance.

自我概念显著的预测因子是锥体外径症状，可解释变异量为11.8%。

It includes a lot of statistical modules, such as variance analysis module, regression analysis module, factor analysis module and so on.

它包括很多统计模块，比如方差分析模块、回归分析模块、因子分子模块等。

A 2x2x2 factorial experimental design was adapted. Variance analysis and t test were used to verify the hypotheses.

采用2x2x2的因子实验设计，并使用变异数分析及t检定验证研究假说。

The method provides preparation with metal pattern the candle of same size 96, the false tooth that 2 kinds of brands use after breaking candle base hold colophony in the palm to fill glue, undertake with 4 kinds of methods heat treatment makes its solidify, detect with machine of all-purpose and mechanical experiment base hold resinous bending intensity in the palm, mix with double element variance analysis multiple undertake statistical processing quite.

方法用金属模具制备相同尺寸的蜡型96个，失蜡后使用2种品牌的义齿基托树脂填胶，用4种方法进行热处理使其固化，用万能力学实验机检测基托树脂的挠曲强度，用双因素方差分析和多重比较进行统计学处理。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。