sample mean的例句大全

application of regeneration sample mean homogeneous test to emergency medicine

再生子样均值齐性检验在急救医学中的应用

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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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Uncertainty of Sample Mean and Standard Deviation.

取样平均值与标准差之不确定度.

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the standard error of the mean (sem) is a measure of how far your sample mean is likely to be from the true population mean.

标准误差的平均值（扫描电镜），是衡量有多远你的尿样的意思是可能会被从真实人口的意思。

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estimate the population mean weight using the sample mean weight

利用采样的平均重量估计人口的平均体重

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standard error of sample mean

样本平均值的标准误

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according to the trend analysis for sample mean values, the error sources in led intensity test process are analyzed, and the improvement measures are proposed for led intensity measurement system. 4.

根据样品均值趋势控制法，分析了光强测试过程中的误差源，并对LED光强测量系统提出改进措施。

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Disturbed by random selection within a certain number of particles in the sample, calculate the sample mean and variance of the target space, which is proposed for the maximization and minimization problems of the robust model ofa single target, and extended to multiple targets. 4.

通过随机选取粒子扰动范围内一定数量的样本，计算出样本目标空间的均值和方差，由此提出了针对最大化和最小化问题的鲁棒模型，并推广到多个目标的优化命题。

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K-means algorithm possesses strong local search capability and rapid convergence capability, and the clustering result is independent of the order of the sample data.

k均值算法的局部搜索能力强、收敛速度快，且聚类结果不受样本数据输入顺序的影响。

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The traditional clustering algorithms such as k-means and EM algorithm are based on a spherical sample space, when the sample space is not convex, the algorithm will stop at a local optimum.

传统的聚类分析算法最常见的比如k-means算法和EM算法，这些算法都是建立在凸球形的样本空间上，当样本空间不为凸时，算法会陷入局部最优。

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using mean sectional measurement, according to principle of probability with misjudge, differences among shapes of tree trunks were studied on 306 sample trees in 6 species. the results are nearly alike except a few tree species.

对6个树种306株样木，用平均区分求积式，根据误判概率原理研究树干形状之间的差异，经计算分析，除少数几个树种外，其他都很接近。

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to obtain a reasonable length of the sample, this paper calculates the least length of the sample for assessing the typical load conditions of excavators, using the method of approximate mean value estimates, based on the theory of hypothesis testing. 2.

为获取合理长度的数据样本，本文依据假设检验的思想，运用近似均值估计法确定出制定挖掘机典型负载工况所需的最小样本长度。

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mean age of the study sample was 44. 5 years, 21. 1% were men, 10. 9% were nonwhite, and more than half had at least 2 comorbid conditions.

试验样本平均年龄为44.5岁，其中21.1%为男性、10.9%不是白人，且超过一半有至少两个以上的并存状况。

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results: the contents of nobiletin in different lots of chen pi were 0.051%~ 0.509%. the mean sample recovery rate was 99.2%. rsd was 1.9%.

结果：不同批号陈皮药材中川陈皮素的含量为0.051%～0.509%，平均加样回收率为99.2%，RSD为1.9%。

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the mean shift can bypass the priori hypothesis on the type of entire probability density function for a sample. not only has it higher performance such as reliability, robustness and flexibility, but also is it of strict convergence.

Mean Shift可以避免对样本所属的总体概率密度函数形式的先验性强制假设，它不但具有更高的可靠性、健壮性和相当的通用性，还具有严格的收敛性。

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based on these expansions, the empirical bayes estimator is shown to have smaller mean squared error than the customary variance estimator, i. e., the within group sample variance, if n is large.

基于这些展开式，在N很大时证明了经验Bayes估计要比常用方差估计（组内样本方差）有更小的均方误差。

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the standard sample ( metallurgy department standard sample 505) was measured by this method with the rsd of 1.08% and the mean content value of 33.93% ( recommendation value of standard sample is 33.58%).

本法测定锰矿标样（冶金部标准样品505）中二氧化硅含量，其测定结果的相对标准偏差RSD为1.08%，测定平均值为33.93%（标样推荐值为33.58%）。

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The analysis tool is SPSS 13.0; statistical method is mean comparison and independent sample t test.

主要采用的分析工具是SPSS13.0, 采用的统计方法是均值比较法和独立样本t检验法.

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The author has found that arithmetic mean value of the coercivity mea-sured along two directions of sample axis is invariable.

找到沿样品两个方向磁化后，得到的矫顽力算术平均值不变原理。

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Methods: the data of air monitoring of 5 shops in Chongqing are distinguished into three kinds by K-means clustering analysis: good, meddle, bad, The general condition of shop was assessed by the proportion of different kinds of sample.

方法本文借助重庆市5家商场室内空气质量监测数据，用聚类分析将观测点划分为好、中、差3类，通过各商场各类别观测点的构成对总体状况作综合评价。

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