单词：statistics of population change
单词：statistics of population change 相关文章
by Jason Marshall Sometimes statistics* seems magical. Of course, there isnt really anything magical going onbut the fact that statistical methods can be used to pull useful information out of a hatful of messy data is, at a minimum, remarkable. And,
数学英语
by Jason Marshall In todays article, were wrapping-up our introductory series on fundamental statistics by talking about how knowledge of statistical quantities like the mean and standard deviation can help you understand the significance of the late
数学英语
UNIT 10 Text A PRE-READING TASK Exercise 1 Before reading the passage, consider the questions. 1. Do surveys play an important role in our life? 2. Are the figures in the survey always true? Why or wh
实用英语综合教程
[00:00.98]C So why is nature beginning to turn on us? [00:05.71]One answer is over-population. [00:07.86]The population of the world [00:09.12]is growing at the rate of 10,000 people [00:11.54]an hour,240,000 every day, [00:15.91]nearly 90 million a
北师大版高中英语模块8(选修)
1. break down,分解。 eg: You should break down your methods so that each method does a particular work. 你应当分解你的方法，让每个方法只做某一项工作。 2. statistics,统计,统计资料;statistics也指统计学。 eg:I happe
蒋健棠教你听英语广播
By Nico Colombant Dakar 21 March 2008 For the first time since 1984, Liberian census takers are visiting dwellings throughout the country to count the inhabitants. Overall estimates of the post-conflict population range widely from two to four milli
VOA标准英语2008年（三月）
Alice: Hello, I'm AliceFinn: And I'm Finn.Alice: And this is 6 Minute English! This week were talking about populationgrowth and the effects it might have on the world. At the moment itsestimated that there are about 7 billion people on the planet. F
六分钟英语
This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Why bother with sex? Its a question thats bugged biologists since they first noticed that some critters do it and some dont. The answer theyve come up wi
Scientific American(十一)月
By Mike O'Sullivan Los Angeles 21 December 2007 Population statistics are hard to visualize, but an art exhibition in Los Angeles makes the numbers easier to grasp. Mike O'Sullivan reports that the exhibition, called Of All the People in All the Worl
VOA常速英语2007年（十二月）
There is a consensus among the delegates and world leaders attending the climate change conference in Copenhagen on the need to cut greenhouse gas emissions and shift to cleaner/more efficient energy. But a research center in Britain is espousing a d
VOA标准英语2009年(十二月)
AGRICULTURE REPORT - From Horses to Tractors, Changes in U.S. Agriculture By Mario Ritter Broadcast: Tuesday, June 21, 2005 I'm Gwen Outen with the VOA Special English Agriculture Report. Over the yea
农业与发展
今天我们要学的词是reflect。 Reflect, 是反映出的意思。The new statistics reflect a change in people's spending habits, 新的统计数字反映出人们消费习惯的变化。The school newspaper reflects the interests of the studen
英语每日一词
今天我们要学的词是reflect。 Reflect, 是反映出的意思。The new statistics reflect a change in people's spending habits, 新的统计数字反映出人们消费习惯的变化。The school newspaper reflects the interests of the studen
英语单词荟萃
population studies 人口研究 demography 人口学 demographer 人口学家 population theory 人口理论 Malthusianism 马尔萨斯主义 neo-Malthusianism 新马尔萨斯主义 overpopulation 人口
英文语法词汇
Currently, one in ten Chinese citizens is 65 or above. And this proportion is likely to increase to one third by the year of 2050. Meanwhile, the working population is also aging. Wang Jun, professor at Sun Yat-Sen University, says this trend would p
英语新闻
And so you may say, well, given all of that, why then doesn't it work? 你可能说，就算这样，为什么不奏效呢？ Why can we not make our politicians change? Why can't we demand them? 为什么我们无法让政党改变？为什么我们无
TED演讲国际问题篇
How about the next question? This is asking about what the average age is, 那么下一个问题呢？这是问关于年龄的中位数， so the age at which half the population are younger and half the population are older. 也就是该地区大于和
TED演讲科学篇
Statistics New Zealand collects population numbers every year from 1st October to the end of September. The latest figures show that New Zealands population on September 30th was 4,414,400. This is equal to 0.06% of the worlds population. We have 33,
新西兰英语
population 母体 sample 样本 census 普查 sampling 抽样 quantitative 量的 qualitative/categorical 质的 discrete 离散的 continuous 连续的 population parameters 母体参数 sample statistics 样本统计量 descriptive statistics 叙述统
英语口译
This podcast is about listening to numbers. I have left the numbers out of the written text, so you will have to listen carefully to understand. Send me an e-mail if need help. What is Britain really like? How do British people really live when we ar
听播客学英语