The term effectiveness is used to describe the likelihood that the statistical sample result will be more accurate estimate of the true population error rate.
效果“用来描述统计样本结果能更精确估计真实的总体误差率的可能性。”
Perhaps that once was true, but today elderly Americans as a group have a lower poverty rate than the rest of the population.
也许这曾经是对的，但是今天美国老年群体的贫困率比其他人群要低。
“In the college population, it may be difficult to sort out recreational drinking from true problem drinking with DSM-IV diagnostic criteria alone,” the researchers said.
研究者说：在大学人群中，区分娱乐喝酒的人和真正的美国精神障碍下统计手册上描写的标准的酗酒的人或许是有点困难的。
“In the college population, it may be difficult to sort out recreational drinking from true problem drinking with DSM-IV diagnostic criteria alone, ” the researchers said.
研究者说：在大学人群中，区分娱乐喝酒的人和真正的美国精神障碍下统计手册上描写的标准的酗酒的人或许是有点困难的。
Scientists don't know how large the Asian carp population would need to get before it becomes self-sustaining and morphs from nuisance into true threat.
科学家不清楚亚洲鲤鱼的种群规模达到多大时才能存活下来，并将骚扰变成真正的威胁。
This allows Costa Rica to use its female population more productively than is true in most of the region.
这使得哥斯达黎比其他地区更有成效地利用其女性人口。
The alternative hypothesis -- that a difference in proportions exists in the population -- is statistically more likely to be true.
另一种假设 — 对象总体中存在着比例差异 — 在统计上可能更正确。
It's true that an aging population and rising health care costs will, under current policies, push spending up faster than tax receipts.
没错，在现行政策下，不断老龄化的人口和不断上升的医疗费用推动开支的增长超过税收的增加。
With such a large international population living in Paris, true natives are hard to find these days.
在这个年头要找到一个真正当地的巴黎人是很难的。
"If you have true randomness, then you only need to talk to 400 to represent population in the millions," he says.
“如果你有真实的随机性，那么你只需要跟400百万人口的代表，”他说。
The absence of diabetes was true even though the Laron population tends to be heavier than other Ecuadoreans, and being overweight raises the risk for diabetes.
尽管莱伦氏人群一般比其他厄瓜多尔人更重，应该有更高的糖尿病发病率。但实际上他们并没有糖尿病。
For this much is true about Texas: It has, for many decades, had much faster population growth than the rest of America - about twice as fast since 1990.
德克萨斯州的确是这种情况：几十年来，德州的人口增长远超过美国其它地区——1990年以来增长速度超出一倍。
That is not true for humans, whose population has grown exponentially for at least several thousand generations.
这对人类来说并非真实，人类种群一直以指数增长，起码有几千代如此。
Which statement about the population of Qatar is true?
下列关于卡达的人口叙述，哪项是正确的？
But is it a true representation of the state of dental health in the UK population, or an unsubstantiated convenient statement?
但它是否真的能够真正代表国家的牙齿健康，英国的人口，或未经证实的方便声明？
It's true that the North had a larger population and greater resources.
的确，北方拥有更多的人力和资源。
Second, it's true that rotting wood can increase insect population, but is this really bad for the forest?
第二，的确那些腐烂的树木会让昆虫的数量增加，但是这就一定对森林不好吗？
On the other hand, an exceptionally well-developed country may produce surpluses not needed by its own population; this has been true of the U. s., Canada, and some of the West European countries.
另一方面，特别发达的国家可能生产过剩，大于本国人的需求，美国、加拿大和一部分西欧国家就是这种情况。
On the other hand, an exceptionally well-developed country may produce surpluses not needed by its own population; this has been true of the U. s., Canada, and some of the West European countries.
另一方面，特别发达的国家可能生产过剩，大于本国人的需求，美国、加拿大和一部分西欧国家就是这种情况。
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