1) sample limit error
样本极差
1.
R is the sample limit error (Xmax-Xmin)and n is the sample size.
R是样本极差(X_(max)-X_(min)),n是样本大小(容量)。
2) sample variance
样本方差
1.
Acquired conclusion was that the sample mean value submitted to normal distribution, and the sample variance was composed of a number of linear sum of random variable submitted to Chi-Squared distr.
得出的结论是:样本均值服从正态分布,样本方差由若干个服从卡方分布的随机变量的线性之和组成;样本均值的期望等于各管落点期望的算术平均值,方差为各管方差的算术平均值;样本方差是各管落点总体平均方差的无偏估计,方差与各管落点散布的差异相关;样本均值与方差相互独立的充要条件是:各管落点属于独立同分布样本。
2.
The estimators of functions G(t) and F(t) are extended to function J(t) and the comparative study is made,including the comparison of biases,sample variances and maximal bias.
文章把关于G(t)和F(t)的估计扩展到J(t)并对其进行了比较研究,包括偏差、样本方差和最大偏离的比较。
3.
In view of this situation, taking the samples from the entrance exam papers of art for higher education in He′nan Province in 2000 and the sample variance method and relative frequency method were used to evaluate the accuracy and stability of grading, moreover, the curve line of errors has been formed.
针对主观评分过程中存在的评分误差问题 ,从 2 0 0 0年河南省高等学校招生美术专业统考试卷中抽取样本 ,采用样本方差法与频率法对评分准确度及稳定性进行了描述与评价 ,并建立评分误差曲线 。
3) sample dispersion
样本离差
4) Minimum sample
极小样本
5) sample extremes
样本极值
1.
For an engineering system,most of the design variables have an uncertainty,and the sample extremes of these variables also have an uncertainty.
本文从次序统计理论出发,建立了该样本的极大值与极小值的区间估计算法,并对大容量和小容量样本的情况分别进行了讨论,获得了在小样本情况下可用母体均匀分布获得的结果来估计样本极值区间的结论。
6) extreme sample
极端样本
补充资料：极差(样本变易的)
极差(样本变易的)
range (of variation of a sample)
极差(样本变易的)[份嘎夕(ofva血6阅ofa绷沙);pa3Max(‘60pKN)」 对同一随机变量X的n次独立测量得到的有序样本 (x」，…，从.)，x、簇…蕊气中最大值戈。，=x，与最小值x~=x，之差 w。=x阳x一X恤·设F(x)=尸资X簇x}是随机变量X的分布函数，则极差的概率分布为 尸{，，。、:}一。丁(;(二+，)一:(二))一己;(x)， 0延t成叨.【补注】样本变易极差亦称为样本极差(samPlelan-罗).
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条