样本分布

In the ease of small sample or indefinite error distribution , there is a problem of unlikelihood of statistical referrer .

在小样本或者模型误差分布不明确的情况下，该方法存在统计推断不可信问题。

The improved criteria on the constraint conditions of kernel functions in our results should also provide a better understanding of the asymptotic properties of the ESD of large dimensional sample covariance matrices.

具我们结果中核函数的限制的改进准则，可以对大维样本协方差矩阵的经验谱分布的渐近性质有一个更进一步的理解。

The paper studies the auto-covariance estimation of Gamma distribution by using the asymptotic behavior of student U -statistic,gives the large sample interval estimation for the scale parameter,and carries out the computing simulation according to the method of random simulation.

利用学生氏U－统计量的渐近性质，研究伽玛分布的自协方差估计，同时给出了尺度参数的大样本区间估计，并采用随机模拟的方法进行计算模拟

In chapter 10, we propose the random weighting approximation method for distribution of sample mean under simple random sampling in one-dimensional finite population.

第十章 将随机加权法首次应用到简单随机抽样方案下的样本均值分布逼近问题中，从数字特征角度说明了随机加权方法在抽样理论中的可用性，从而拓广了随机加权法的应用范围。

After the expansion of the experimental sample space, 25、26 and 27 CAN networks are given for searching the distribution of length contraction.

扩大实验样本空间后，给出了规模分别为25、26和27的 CAN 网络的查询长度缩短率分布。

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。

Although the asymptotic normality of pseudo-likelihood estimates has been proved (Gidas, 1993), the difference between the proposed asymptotic variance and the sample variance is still huge in binary Markov random fields.

虽然最大伪概似函数估计量的近似常态分布已被证明(Gidas， 1993)，但其近似理论上的变异数与样本变异数在二元随机域之下仍存在著相当的差异。

Two-stage sampling has only one chance of using the information provided by samples to determine the following plan. Pure sequential sampling, however, could use sampling size sparingly. In addition, in some cases, pure sequential procedures have to be applied to acquire the confidence intervals which meet the demands.

两步抽样，只有一次机会利用样本信息决定今后计划，采用纯序贯则可使平均抽样次数节省，另外，在一定的分布族中必须采用纯序贯才能取得满足要求的区间估计。

In this article,students actually present at exams are regarded as simple random sampling of all the students,and the sampling and assessing ways are applied.

将实考考生看作为考生总体的一个简单随机样本，应用抽样估值的方法，在若干合适的概率分布模型下，收集和推演了考生总体合格率的一些估计公式，以估计有考生缺考时，考生总体的合格率。

The comparison error rate of LSD and Duncan is equal toα, but their experimental error rate is large toα. The comparison error rate of SNK, Scheffe, Bonferroni, Sidak are smeller toα, as well as experimental error rate. The power of test of SNK, Scheffe, Bonferroni, Sidak are smeller to LSD and Duncans. When unbalance design with small sample size, the power of SNK, Scheffe, Bonferroni, Sidak are little small.

LSD检验、Duncan检验的比较错误率接近检验水准，但二者的实验错误率远远大于检验水准；SNK检验、Scheffe检验、Bonferroni检验、Sidak检验的比较错误率和实验错误率均小于检验水准，但这三种方法对均数的敏感度不及LSD检验和Duncan检验；正态分布方差齐各组不均衡且为小样本时，Scheffe检验、Sidak检验、Bonferroni检验的β_2，值均较大。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。