Based on a critical literature review and an analysis of the relevant statistical data, this article attempts to show that the problems of China's population structure could not be solved by adopting a higher birth rate.
在综述理论界讨论的基础上，通过对相关统计资料的分析，说明调高总和生育率水平解决不了我国人口的结构问题。
Beijing Statistical Bureau, the National Bureau of Statistics announced in Beijing survey data Corps area is the use of per capita housing, Ministry of Construction announced that the per capita housing area, and statistics department's forecast of 25.9 square metres per capita housing area is 6.96 square metres of construction gaps; Second, the use of different population data, the use of population statistics department for the resident population of the district towns built for the 1115 million people, and the Ministry of Construction of the population is the use of non-agricultural household registration population to 880.2 million.
北京市统计局、国家统计局北京调查总队公布的数据是人均住房使用面积，建设部公布的是人均住房建筑面积，与统计部门测算的人均住房建筑面积25.9平方米仍有6.96平方米的差距；二是使用的人口数据不同，统计部门使用的人口为城镇建成区的常住人口，为1115万人，而建设部使用的人口是全市非农业户籍人口数，为880.2万人。
Results Statistical significance were observed between malaria incidence and the variation of population number of Anopheles minimus r = 0.89, P
结果 疟疾发病率与微小按蚊数量变化有统计学意义(r=0.89，P.05)，微小按蚊数量变化与分层在1100m海拔以上的村委会种植甘蔗有统计学意义(r=0.78，P.05)。
Based on the study of statistical data about 1980~1998 in Amdo, Tibet and on-the-spot investigation, this paper focuses on dynamic change of population and land utilization, and analyses its establishment of the man-land relationship.
通过对西藏安多县1950~1998年统计资料的研究及实地考察，讨论了安多县人口及土地利用等方面的动态变化，分析了西藏安多县人地关系的形成过程。
In terms of spatial structure evolution, the study determined the scale of urban land by statistical analysis in Jilin on three periods scale-division(1980, 1997, 2001 year).The threshold of urban scale divided into 8, 20, 80, 120 sq km, combined with urbanization and development of Jilin province, we can analyse the changes of urban scale. By contrast, urban land scale division can reflect more information then non-agriculture population scale division in Jilin province; It can be found that the distribution center move slowly toward Changchun City, by calcuting the distribution center in the year 1994, 1999, 2995 and 2008 with weighted by non-agriculture population. Fractal dimension of urban in whole province can be estimated by the relationship of order-scale rule and fractal dimension. By the examples of 1980, 1997 and 2001, the results showed that fractal dimension was with slowly increasing trend, but with lower the overall number and low complexity; By calculating urbanization intensity index of 45 cities in Jilin province in 1980 and 1997, the results showed that the central region of urbanization intensity index was more than the eastern, western.
在规模结构演化分析中，对吉林省三期(1980年、1997年、2001年)城市用地的规模划分的基础上，通过统计分析确定吉林省城市用地规模划分的阈值分为8、20、80、120平方千米，通过阈值并结合吉林省城镇化发展的情况对吉林省城镇体系规模等级结构的演变进行分析，得出城市用地规模划分法比非农人口划分法更能反映中小城市的规模等级变化；计算1994年、1999年、2005年与2008年的数据非农人口为权重的省域分布中心，研究表明吉林省城市分布中心向长春市缓慢的移动；通过城市用地位序-规模法则与分形维数的关系计算吉林省1980年、1997年、2001年三期城市用地规模分维数，结果表明城市规模分布维数处于缓慢增加的趋势，但整体分维数较低，复杂度不高；通过计算吉林省1980年代与1997年代的地形图中45个城市用地数据扩展的强度指数，结果表明中部地区的城市扩展强度要比东部、西部要强。
Click on Statistical from the left section of the box and STDEV on the right section (Note: If your data is from a population, click on STDEVP).
注意：如果你的数据是人口，请选择STDEVP
Considering the different characteristic of the land use and land cover change in different period in the Yellow River delta, we study its driving forces in three periods with qualitative analysis, statistical analysis, and RS and GIS supported analysis. The result shows that before 1950s, the land cover change was mainly drived by natural factors, including climate, storm tide and the Yellow River changing its course; From 1950s to 1970s, the increasing population, exploitation at a large scale of oil field and the reclamation activity becomes the main driving forces along with the frangible water environment; Since the 1980s, the change of its water environment is the determinative natural driving factors, which is effected by the large evaporation-precipitation ratio, shortage of freshwater in the Yellow River and the seawater inbreak.
根据不同时期黄河三角洲土地利用/覆被变化的特点，采用定性分析、统计分析、基于遥感与GIS的方法，分三个阶段对其驱动力进行研究，研究发现：50年代以前，黄河三角洲土地覆被变化主要受自然因素所驱动，具体为气候因素、黄河改道以及风暴潮；50-70年代，在水环境脆弱这一主导自然因子的作用下，人口增长、胜利油田大规模开发以及人类的垦荒活动等逐渐成为土地利用/覆被变化的主导人文驱动因子；80年代以来，水环境的变化是该地区土地利用/覆被变化的主导自然驱动因子，表现为蒸降比大、黄河断流、海水入侵，主导人文因素主要表现为人类对林草、荒地的开垦及对水资源的不合理利用，两者共同驱动该地区土地利用/覆被的快速变化。
In this research, pilots are categorized into different pilot community by different population statistical variations, and then analyze the impact on the communication between different pilot communities caused by the organizational culture.
研究中先将机师依不同的人口统计变项分为不同的机师族群，再各别分析航空公司组织文化认知对飞航机师沟通态度之影响关系。
In the field of traditional parametric statisties, people are accustomed to assume that the data come from some population of a distribution first, and then make statistical study based on this population.
在传统的参数统计中，人们习惯于首先假设样本数据来自某个分布总体，然后基于这个总体，进行后续的统计推断研究。
We know, let's say from statistical experience that we can estimate that about a third of the affected population are children.
我们知道，从统计学的经验上我们可以估算出，受热带风暴影响的人口中，大约三分之一是儿童。
In this paper, the regression estimation for multivariate simple random sampling and stratified sampling is discussed, it is proved that this method is more available than the estimation without auxiliary variable, and some statistical inferences of population mean are given.
文章系统地讨论了多元简单随机抽样及分层抽样的回归估计法，说明与无辅助信息抽样相比，回归估计法是一种更有效的方法，并得出了总体均值的一些统计推断。
We now turn to the statistical properties of OLS for estimating the parameters in an underlying population model.
我们现在讨论OLS估计量的统计特性，而我们知道OLS是估计潜在的总体模型参数的估计量。
According to development course and current situation of population and status quo of urbanization level in the region along railway of southern Xinjiang, the author applies the PEOPLE software and the large statistics software-SPSS and the method of URGD to forecast the development of population and the level of urbanization in the region on the base of statistical data from 1998. The population will reach 8.87 million, and the level of urbanization will reach 37%in 2015. Then the author probes into the significance of such forecast, puts forward the programs of the population development and the urbanization level in the region, and tries to advance some safeguard measurement aim at realization of such program.
根据南疆铁路沿线四地州人口发展过程和人口现状与城镇化水平现状，采用联合国人口基金提供的People人口预测软件和大型统计软件SPSS，以及联合国人口司推荐的用于预测世界各国城市人口的方法，简称为URGD法，以1998年的统计数据为基础对区域的人口发展和城镇化水平进行了预测，到2015年南疆铁路沿线地州人口将达到887万人，城镇化水平将达到37％，随后又对预测的意义进行了探讨，提出了人口发展规划和城镇化水平目标规划，并为规划的实现提出了几点主要的保障措施。
The influences of the main parameters on population inversion including initial population of the ground state, statistical weights ratio of the lower and upper laser levels, ratio of the three body recombination cascade speed and the spontaneons radiative decay speed are calculated and studied by using numerical calculations.
从实现离子的基态和激发态之间粒子数反转的主要参量入手，数值计算了基态的粒子数密度、上能级和下能级的统计权重之比、三体复合速率和自发辐射衰减速率之比等每个参量对反转粒子数密度的影响，并且以基于光场感生电离复合机制B likeN系统为例对实际系统进行分析讨论，给出了实现基于光场感生电离B likeN4 5 。
A tolerance interval, a statistical interval pertains to a specified proportion of a population, is an important statistical tool and widely used in various practical applications, such as plant or animal inbreeding, environmental monitoring and regulation, pharmaceutical engineering, process reliability studies, quality control, etc.
中文摘要容许区间是一个非常重要的统计工具且被广泛地运用於各种领域中，例如，在动植物育种研究上、生态环境品质的监控、制药工业、或工业上制程的可靠度研究及产品品质的管控等等。容许区间是属於统计区间的一种，其所关心的问题是母群体中的某一特定比例个体之区间范围。
This study examined the impacts of induced intensification of agriculture on land and soil qualities in six villages in Bangladesh. It compared the population, farming systems, land use and soil quality data collected in 19841985 and 20032004 from 265 households. The field research included personal interviews, plottoplot land use/land cover surveys, and collection and laboratory analysis of properties of 1260 soil samples. Percentage change (19842004) in household and soil quality data were used to construct the statistical variables and land degradation indices used in testing the induced intensification and land degradation models.
在实地采访、地块土地利用/覆盖调查和1 260个土样的收集和实验室分析等野外工作的基础上，对比分析了1984—1985年和2003—2004年265个家户的人口、农业系统、土地利用和土壤质量数据，研究了孟加拉国6个村庄农业诱导强度增强对土地和土壤质量的影响。1984—2004年家户和土质数据的百分比变化用来构建诱导强度增强模型和土地退化模型中的统计变量和土地退化指标。
Finally, the comparison of the statistical population density and the actual population density of the selected sample counties proves the higher precision of the results.
最后选取某些样本县，在样本县内对比每个乡镇图上的人口与实际统计人口，结果表明该人口分布数据有较高的精度。
In addition, the interpretation of league table might be incorrect if we did not consider the statistical unstabability due to population size.
此外，忽略县市别人口数大小造成的死亡率计算的统计不稳定，也会造成错误的排名解释。
Abstract In this paper, we established basic methods and theories of multivariate sampling and proved the central limit theorem, this is the theoretical foundation of statistical inference in multivariate finite population.
较系统地建立了多元抽样的基本理论和方法。证明了多元有限总体样本的中心极限定理，这是多元有限总体抽样统计推断的理论基础。
Based on the induced attributes and relationship among the induced attributes of the population's information system, the tasks of the statistical analysis and the data mining, and the function for data mining is determined.
本文根据人口信息系统规约后的属性及其间的关系，确定了人口信息系统的统计分析任务、数据挖任务、以及数据挖掘功能。