... mean of population 总体均数 ; 人口平均值 ; 总体均值 mean effective population size 平均有效种群大小 arithmetric mean of population 总体算术均数 ...
基于484个网页-相关网页
... mean of population 总体均数 ; 人口平均值 ; 总体均值 mean effective population size 平均有效种群大小 arithmetric mean of population 总体算术均数 ...
基于94个网页-相关网页
... mean of population 总体均数 ; 人口平均值 ; 总体均值 mean effective population size 平均有效种群大小 arithmetric mean of population 总体算术均数 ...
基于12个网页-相关网页
arithmetric mean of population 总体算术均数
estimation of population mean 总体均数估计
the mean of the population 平均数
mean of the population [数] 总体平均数
Okay lets start with inductive generalization, what I mean is that the premise identifies the characteristic of the same of a population.
好,我们开始说归纳推广,我的意思是前提,决定了同样人群的特点。
I mean take the question of East Asia: Japan, Korea, China, etc. a third of the world's population lives there, now the largest economic region in the world.
我们来谈谈东亚的问题。东亚:日本,韩国,中国等等——世界上三分之一人口住在那边,现在是全球最大的经济区域。
Britain places a disappointing 26th, down four places from a year ago, reflecting in particular a relatively low mean number of years of schooling for its population.
英国排在令人失望的第26位,比一年前下降4位,相对应的尤其是其人口的一个相对较低的受教育时间。
We can define it in a couple of different ways depending on whether we're talking about sample mean or population mean.
我们有几种不同的方式去定义这个概念,取决于我们指的是,样本均值还是总体均值
Well, a cross-sectional study would mean that you'd get a random group of the population and measure them in 1970 and then take another random group five years later and measure them, but it wouldn't be the same people necessarily, it would be different groups of people.
那么,横断面研究就是,1970年你在人群中随意选择一组人,并记录下相关数据,然后,五年后再随意选择一组人记录数据,但这不需要是同一组人,通常是不同的人
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