从所有的区域和它们的估计人口列表中得到总分组数，再将总分组数除以30得到分组抽样间隔k。
The total number of clusters, drawn from a list of all sections and their population estimates, is divided by 30 to obtain the cluster interval K.
科学家们估计人口数量在18500左右，考虑到我们的祖先散布在世界各地，这个数字说明人类在当时是相当稀有的。
Their estimate of 18, 500 individuals is pretty sparse considering that these early humans were spread across the Old World.
据估计，大约12万吨的进口粮食养活了大约60万人，约占荷兰人口的三分之一。
According to estimates, about 120,000 tons of imported grain fed about 600,000 people: that is about a third of the Dutch population.
按照对目前人口趋势的最保守估计，到那时人口将增加约30亿人。
Applying the most conservative estimates to current demographic trends, the human population will increase by about three billion people by then.
人口学家估计，到2050年，将有四分之三的人类居住在城市，其中大部分将来自亚洲和非洲快速发展的城镇。
Demographers reckon that three quarters of humanity could be city dwelling by 2050, with most of the increase coming in the fast growing towns of Asia and Africa.
据估计，目前印度城市人口的三分之一住在棚屋和临时房屋中。
One-third of the current urban population is estimated to live in shanties and huts.
普赖尔说：“根据目前我们无法通过陆路取得联系的地区和人口数量估计，我们需要至少40架重型直升机，进入那些地区。
We estimate, based on the areas and the number of people that we cannot reach by road currently, that we require at least 40 more heavy-lift helicopters to reach into those areas.
东帝汶估计有1百万人口。
据估计，50%以上的人口不能获得初级卫生保健。
It is estimated that more than 50% of the population does not have access to primary health care.
据估计，全球粮食危机将使挨饿人口达到临近十个亿的水平。
The global food crisis is estimated to have increased the number of hungry people in the world to just under one billion.
估计在缅甸的人口中，有三分之一年龄在15到24岁之间。
Estimates suggest that one-third of the Burmese population is between the ages of 15 and 24 years old.
据估计蒙古拥有280万人口。
也门人口估计有2千万。
不丹人口估计有两百二十万。
21世纪初的人口估计显示大概有4500名万帕诺亚格人。
Early 21st-century population estimates indicated some 4, 500 Wampanoag descendants.
马其顿估计有2百万的人口。
联合国人口基金(UNPA)估计，每年全世界“荣誉谋杀”受害可能高达5000人。
The United Nations Population Fund (UNFPA) estimates that the annual worldwide number of so-called "honour killing" victims may be as high as 5, 000 women.
联合国人口基金（UNPA）估计，每年全世界“荣誉谋杀”受害可能高达5000人。
The United Nations Population Fund (UNFPA) estimates that the annual worldwide number of so-called “honour killing” victims may be as high as 5,000 women.
据估计，这个人口只有460万的国家负债可能超过€1000亿。
It is estimated that the banking debt of this nation, which has a population of only 4.6 million, may be substantially more than 100 billion euros.
照此估计，世界人口应在2到3年前达到70亿。
With this estimate, the world's population would have reached 7 billion between two and three years ago.
在估计达12亿人口的印度，多数人必须自费支付医疗费用。
Most of India’s estimated 1.2 billion people have to pay for medical treatment out of their own pockets.
估计这个国家人口有1300万，柬埔寨的种族单一，超过90%人口是高棉血统。
The country has an estimated population of 13 million. Cambodia is ethnically homogeneous, as more than 90% of its population is of Khmer origin.
根据上一次的人口统计调查(2003)，估计马耳他在当年年末的人口数(包括非马耳他居民)为399,867。
According to the last demographic survey (2003), the estimated population of the Malta at the end of that year (including non-Maltese residents) was 399,867.
据估计，全世界60%的人口利用传统医学保健治病，一些国家还将传统医学纳入其公共卫生系统。
Traditional medicines are estimated to be used by 60% of the world's population and in some countries are extensively incorporated into the public health system.
在过去的五十年里，人们估计地球的人口承受能力从少于十亿到多于一万亿，但不可能所有人的估计都正确。
In the last half century, people have estimated human carrying capacities for the earth that have ranged from less than one billion to more than a trillion. They can't all be right.
他们受民众尊敬的原因是由于他们虔诚自律，有抵抗精神，但他们的人口估计只有20%左右，而且还在下降中。
Nor would they obviously win elections. They are respected for their piety, discipline and resilience, but estimates of their popularity hover around 20% and have been falling.
但是蔡先生和其他人口统计学家估计，真实的比率是接近1.5。
But Mr. Cai and other demographers estimate the real rate is closer to 1.5 children.
但是蔡先生和其他人口统计学家估计，真实的比率是接近1.5。
But Mr. Cai and other demographers estimate the real rate is closer to 1.5 children.
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