单词：population standard diviation
单词：population standard diviation 相关文章
The U.S. population is increasing at nearly one percent a year, making the United States the world's fastest growing industrial nation. 美国人口正以每年将近1%的速度增长，这使美国成为世界人口增长最快的工业化国家。
VOA双语新闻 Bilingual News
by Jason Marshall Weve now talked about three methods for calculating average values: the mean, median, and mode (affectionately known as the three Ms). So, are we done? Is that everything we could ever want to know about interpreting average values?
数学英语
EXPLORATIONS -January 30, 2002: Population and the Environment By Cynthia Kirk VOICE ONE: This is Bob Doughty. VOICE TWO: And this is Steve Ember with the VOA Special English program EXPLORATIONS. Tod
Explorations
According to the 2010 World Population Data Sheet, there will be fewer workers to support an aging population in the coming decades. The booming population growth of the past century has slowed, but improving health conditions and stubbornly high bir
VOA标准英语2010年(七)月
THE MAKING OF A NATION - June 20, 2002: Post-World War Two / Population By David Jarmul VOICE 1: THE MAKING OF A NATION -- a program in Special English by the Voice of America. (Theme) World War Two e
The Making of a Nation
Women Bear Brunt of Population Growth The global population is expected to rise to nine billion by 2050. Most of that growth will be in developing countries. However, many are asking whether such growth is sustainable, considering the amount of resou
VOA标准英语2013年(六月)
World Population Day is observed annually on July 11. Its aim is to raise awareness of global population problems. The event started in 1989 in response to the worlds population reaching five billion two years earlier. The United Nations Development
英语课程学习计划和讲义
DEVELOPMENT REPORT – December 16, 2002: UN Population Study By Jill Moss Broadcast: December 16, 2002 This is the VOA Special English Development Report. The United Nations Population Fund has relea
农业与发展
By Michael Bowman Washington 07 March 2006 view Global Population report By 2050, world population is projected to reach nine billion people. That would constitute a 38 percent jump from today's popul
2006年VOA标准英语（三月）
By Anya Ardayeva Moscow 08 March 2006 watch Russian Population report The Russian government is looking for ways to stop a severe population decline in the country, which has reportedly reached record
2006年VOA标准英语（三月）
By Margaret Besheer Washington 17 October 2006 Immigrants take the oath of U.S. citizenship in Gilbert, Arizona (file photo) The U.S. population has reached 300 million, according to the Census Bureau. Only China and India have larger populations th
2006年VOA标准英语（十月）
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
By Lisa Schlein Geneva 27 June 2007 The United Nations warns that a doubling of urban populations in Africa and Asia by 2030 will have harmful consequences if governments do not prepare now for the coming growth. In this year's State of World Populat
2007年VOA标准英语（六月）
Report: Africa Not Prepared for Aging Population A new report says African governments are ill prepared to handle the growing number of people over age 65. The African Development Bank is raising concerns over the lack of health insurance and pension
VOA标准英语2011年(十一月)
New census figures for the Midwest U.S. state of Michigan show dramatic population declines. Michigan was the only state in the 2010 census to lose people. Its biggest city, Detroit, once the fourth largest in the nation, is now the 18th largest. Tha
VOA标准英语2011年(三月)
Population Reflects Economic Woes in One US Town The city of Gary, Indiana, was founded in 1906 by the head of the United States Steel Corporation, Elbert H. Gary. U.S. Steel continues to operate a massive plant along the shores of Lake Michigan, tho
VOA标准英语2011年(八月)
Rising Crop Prices Linked to Decline in World's Bee Population Terrence Ingram considers himself a naturalist. He said hes best able to commune with the natural world around him at the center of a swarm... of bees. I love beekeeping. Its one of Gods
VOA标准英语2013年(六月)
Pesticides Contribute to Decline in World's Bee Population Terrence Ingram considers himself a naturalist. He said hes best able to commune with the natural world around him at the center of a swarm... of bees. I love beekeeping. Its one of Gods grea
VOA标准英语2013年(六月)
Judith: I had my annual physical two weeks ago and I just got a copy of the lab results, but I cant figure out what they mean. Steven: Let me take a look. The results of your blood tests are good. Your cholesterol is within the normal range, your glu
地道美语播客
2004 marks the 10th anniversary of the groundbreaking International Conference on Population and Development (ICPD) in Cairo, Egypt, in 1994. Ten years ago, on the eve of World Population Day, a new campaign was launched to raise awareness of how int
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