The university student sports study manner, the exercise manner, the cordiality performance and the team spirit have the difference in the population statistics variable.
大学生体育学习态度、锻炼态度、情意表现与合作精神在人口统计学变量上存在着差异。
The main approach to solve this problem is to stratify the population studied through taking the confounder as the stratifying variable.
解决这一问题的主要方法是将混杂因子作为分层变量把被研究群体分层。
Using method of qualitative theory of ordinary differential equation, studies economic harvesting model with variable price and cost for a single population.
利用常微分方程定性理论的方法讨论了价格成本变化的单种群经济捕获模型。
In addition, this research has analyzed the influence of population statistic variable on each factor.
此外，本研究分析了人口统计变量对于各因素的影响。
The structure and sequence of the genome is immensely variable in the human population.
的基因组的结构和顺序在人类人口具有极大的变量。
The craftsmen's family and its population, the important variable of the family scale, needs further discussing, which is beneficial for a study of farmers' family scale.
工匠家庭和人口是当时家庭规模的一个重要变量，对其进行必要的讨论，对于研究农民家庭规模有一定裨益。
In this paper, on the basis of structural regression models the estimation of the population-averaged treatment effects is given when the response variable is a multi-dimensional vector.
在可交换条件下，当响应变量为多维时，利用结构回归模型研究总体平均处理效应的估计。
There was aggregation of variable cardiovascular risk factors in this population.
各种心血管危险因素在该人群中有聚集现象。
Under population follow normal distribution hypothesis, designing combine median-range adaptive control charts with variable sampling interval, variable sample size and variable control limit .
在假设总体服从正态分布的条件下，设计了抽样区间，样本容量和控制限都变化的全变化参数的中位值-极差联合控制图。
Using computer simulating technique and cohort conception, the simulation model of armyworm population dynamics under variable temperatures was built.
应用计算机模拟技术，引入同龄组的概念，建立了适合于估测变温条件下粘虫种群动态的计算机模拟模型。
The paper proposes new separate ratio estimators for population mean using known skewness coefficient of auxiliary variable in stratified random sampling.
本文在分层随机抽样下通过使用辅助变量的偏斜系数提出了几个总体均值的估计。
The paper proposes new separate ratio estimators for population mean using known skewness coefficient of auxiliary variable in stratified random sampling.
本文在分层随机抽样下通过使用辅助变量的偏斜系数提出了几个总体均值的估计。
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