位数

So, we discuss the asymptotically best linear unbiased estimator for the logistic population based on the selected order statistics, give the pr.

为缓解这一困难，本文讨论利用样本分位数的Logistic总体的近似最佳线性无偏估计，给出估计量的大样本性质，以及样本分位数不超过10情形下，估计量有渐近最大相对估计效率时样本分位数的选取方案等。

Especially, by an example for analysis of the authoritical boston housing prices data, we emphasize on applying an new regression model and method -- semiparametric functional coefficient quantile regression and two-step estimation method to show the great explaination of the new

介绍了非参数回归和半参数回归的发展历程及其估计方法，还介绍了分位数回归的相关理论及其研究现况。在半参数、变系数回归和分位数回归的基础上，进一步讨论了非参数和半参数的变系数分位数回归模型和局部多项式线性估计法。

Record ways presented by grade four students in test question five (Divide three-digit by three-digit, can get one-digit and a three-digit, which is an inclusion division with reminder question) and test question 7 (Divide two-digit by three-digit, can get one-digit and a two-digit, which is a halved division with remainder question) of the written information are the least.

所呈现的109种记录方式为最多；四年级学童在笔试资料的第5题（三位数÷三位数＝一位数…三位数，有余数的包含除问题。）及第7题（三位数÷二位数＝一位数…二位数，有余数的等分除问题。）所呈现的29种记录方式为最少。

Compared with the first and second quartile, the osteoporosis prevalence and risk were significantly increased in the women of the third and fourth quartile, and the fourth quartile had a significant higher prevalence and risk than the third quartile, especially in spine.

与一分位数和三分位数比较，四分位数的妇女骨质疏松症患病率和患病风险显著增加；与三分位数比较，处于四分位数的妇女骨质疏松症患病率和患病风险也显著增加，特别是在腰椎。

The captain has he has both sons and daughters, so we have to choose from 3 and 2 .If we choose 3, then the age of captain should be choosen from 21 11, and 12(8 is left for the boat length).

思路大概是这样的，孩子的数目应该是一位数的，船长的年龄是两位数，所以船的长度也是两位数，那么可能的船的长度的十位数就只能是8。

The purpose is to inspect the grade differences on time of mental addition and mental subtraction of pupils from three grades as well as grades differences of arithmetic time and integration time. The results show that mental arithmetic time of pupils from Grade 2, 4 and 6 decreases with the increase of grades.In the non-carry mental addition of 1-digit number and multi-digit number, menta...

研究结果表明，2、4、6 年级小学生口算时间随年级的增高而减少；在一位数加多位数不进位加法口算中，口算时间差异主要源于运算时间差异和整合时间差异；在一位数加多位数进位加法口算中，口算时间差异源于运算时间差异；在多位数减一位数不借位减法口算中，运算时间年级差异不显著，而整合时间存在显著的年级差异；在多位数减一位数借位减法口算中，口算时间的年级差异主要表现为运算时间的差异，而整合时间差异不显著。

RESULTS: Melatonin significantly reduced the anxiety scores from 5, 3.5-6 to 3, 2-3 after premedication and to 3, 2-3.5 during surgery (P = 0.04 and P = 0.005 compared with the placebo group, respectively).

结果：褪黑素显著降低焦虑评分。给药前中位数及四分位数间距为5， 3.5-6。给药后中位数及四分位数间距为3， 2-3，术中为3， 2-3.5(P=0.04并且和分别和对照组相比 P=0.005)。

In chapterⅡ, considering GLMMs data which the number of high units is different and the number of low units is small and unbalanced, we Conduct a series of simulations, the simulations show that regardless of the number of the level 2 units,the Bayesian estimate of random effects residual variance is more precise than PQL and the PQL estimation deviates from the true value seriously; In terms of the fixed effects estimates, When the number of level 2 units is 20, The mean and median of the Bayesian estimate is more precise than PQL,But With the number of level 2 units increase,the estimate of two methods is similar. Thus, in practical applications, we recommend the use of Bayesian method.

第二章针对不同高水平单位数，低水平数较小且不平衡的GLMMs数据，进行模拟研究，研究表明：无论水平2单位数的大小，贝叶斯方法随机效应残差方差估计值远比PQL法更接近真实值，PQL法严重偏离了真实值；而对固定效应参数估计值，当水平2单位数为20时，贝叶斯法各参数的均数和中位数均要较PQL法更接近真实值，而随着水平2单位数的增加，两种方法在估计固定效应参数时相差并不大，因而，在实际应用中，推荐采用贝叶斯法。

A four-digit even number with a digit less than 5 in the tens place and a digit greater than 5 in the thousands place.

一个四位数的偶数，10位数的数字小於5，千位数的数字大於5。

We analyzed the regular pattern of daily medicine cost change of operation inpatients during hospitalization in every group . the results indicated that the median line of daily medicine cost had similar regular pattern in operations on the nervous system , the musculoskeletal system , the nose , mouth , and pharynx system and the female genital organs system : the top of daily medicine cost median emerged on the day of operations ; the median of daily medicine cost was low in the period after operation , and the lowest in the period before operation . the median line of daily medicine cost of operations on the digestive system and the integumentary system keeped at a high level in the period of 1 - 6 days after operations

手术病人日药费随住院时间的变化规律按icd - 9 - cm类目表的15个系统大类将住院手术病人分为15组，分析了各系统手术病人住院期间日药品费用的变化规律，结果显示：神经系统、肌肉骨骼系统、鼻口咽系统和女性生殖系统手术的日药费中位数线图具有相似的变化规律：手术病人住院期间的日药费硕士学位论文中位数的峰值位于手术当日，且手术当日的日药费变异最大；术后住院日的日药费中位数明显降低；术前住院日的日药费中位数很低；消化系统和体被系统手术在手术当日及术后1 6天内的日药费中位数维持在较高的水平。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了