查询词典 set at variance

However, variance by the definition is based on the difference between each sample value and the mean.

然而，在运用变异数来进行风险之估计与衡量时，由於变异数计算式的主要部份，是以样本观察值与其平均数离差之平方和来计算之。

E.g. if we know that a distribution is normal with variance 1 but has an unknown mean, the sample average is a sufficient statistic for the mean.

比如，你想判断一个人的性格，你可以问他或她是什么星座的，给定星座的情况下，你对他/她性格的"分布"会有一个估计。

Besides, the sample mean, variance and correlation characteristics were studied.

实验表明，各高频子图象系数近似服从r=0.4的广义高斯分布。

Demonstrate an understanding of type I and type II errors as they relate to sample size and variance.

须了解何谓型一及型二误差，以及样本大小及变对其之影响。

We promise an unconditional taking back if there is any quality variance between the sample and the dispatch.

万一样品的质量与发货的质量不符，我们会保证无条件退货。

You are using sample variance measurements to monitor the results of the process over time Which tool and technique of Perform Quality Control are you using?

你正在使用采样的方式随时来监控生产过程的偏差。你会使用下列哪个质量控制的工具？

In this paper two methods of calculating the variance of the sample's spatial means are used to study the influence of the self-correlation distance on the variation of the coefficient of consolidation.

采用空间均值的方差的两种算法分析了自相关距离对固结系数的变异性的影响。结果表明，随着自相关距离的增大，固结系数的变异性增大。

Descriptive statistics, single sample t-test, analysis of variance, and simple and multiple regression analyses were performed in this study.

以描述性统计、独立样本t检定、变异数分析、简单回归分析及复回归分析等统计方法来分析。

Further, considered the considerable uncertainty of current sample variance, a reliability estimation method based on t-distribution theory and empirical logarithmic standard deviation is proposed.

进一步考虑到工程实际中当次可靠性试验的样本方差具有较大不确定性的因素，提出了基于对数标准差经验值的t分布可靠性评估方法。

After extending the definition of tangent distance,we extract the directions of variance of sample sets using Singular Value Decomposition based onthe original image, and use them as the tangent vectors of training sample sets.

本文把切线距离的概念进行了进一步的延伸，在原始图像的基础上，用奇异值分解方法直接提取样本集合中所包含变化的方向，作为训练样本的切线向量。

The dissecting of samples in group2 were difficult. The root of pulmonary artery and ascending aorta failed to be unfolded because fibrous tissue was tough, right and left fibrous trigone were too firm to be solved by hand. Cardiac muscle fibers couldn't be stripped along myofibrillar trajectory since they were prone to break because of their friability.

组2的心脏解剖困难，表现为纤维组织坚韧，游离肺动脉非常困难；徒手无法松解左、右纤维三角，肺动脉和主动脉根部的游离非常困难；心肌纤维坚硬、质脆，解剖时容易断离成碎块，无法沿纤维走行方向剥离。

We have battled against the odds in a province that has become increasingly violent.

我们对在一个争夺日益激烈省的可能性。