The guest list for the dinner provided a sample. Among those seated in the State Dining Room were the first two Muslims elected to the U.S.Congress Keith Ellison and Andre Carson.
VOA: standard.2009.09.02
There's also another variance measure, which we use in the sample-- There's also another variance measure, which is for the sample.
还有另一个离散指标,我们用以考察样本,这是另一个离散指标,用于考察样本
There's another sample which is in Russia, part of the former Soviet Union, where there are samples that were stored.
另一个样本在俄罗斯,前苏联的一部分,那也有储存的样本
in both groups: the 250 here versus 250 here, which is significant sample size.
在这两组之间,样本规模相同的两组间。
And I say if you took a random sample of the Americans: "When you woke up in the middle of the night" and said: "What does the America stand for?"
我觉得如果给美国人做个抽样调查:,半夜醒来的时候“,被问到,美国人主张什么“
Also today, one of the teaching fellows will be sending out a sample concept sheet, although you may have already seen it from the website, but in addition to that, a series of instructions.
会有一位助教给大家发一篇论文模板,可能你们都在网站上看过了,不过除此之外,还有几项说明
Suppose that in a given year--and say this is minus five and this is plus five, this is minus five and this is plus five-- suppose that in the first year in our sample, the company Shiller, Inc. and the market both did 5%.
假设某一年...这里设为-5,这里+5,这是-5,这是+5,我们假设第一年中,希勒公司.和市场都获利5%
One is in the U.S.at the Centers for Disease Control, where there is a sample of variola, which is kept, you know, frozen on ice in a heavily guarded facility.
一个在美国的疾病控制中心,那有一支天花病毒的样本,冰冻后置于重重保护之下
The danger is that it's being purified from patients that have a disease and so you want to make sure that there's not other diseases that are present in that sample at the same time.
危险在于,这是从带有疾病的病人,身上纯化出来,因此你想确保,在那个样本中不会同时,携带其它疾病
And the other thing you can do is take self reports like the ones you're doing, hopefully do enough of them, and a random enough sample of the population, that you can extrapolate from that sample to the whole population, and try to estimate what people are eating in that way.
还有其他可以做的,比如大家正在做的这种个体调查,希望能把它做的充分些,如果有充足的随机样本,就可以从样本推断出,整个总体,从而推断哪类人有这样的饮食习惯
How could I identify in a chromosomal DNA sample whether the sickle gene is present?
那我该怎么确定某染色体DNA样本中,是否存在这种致病基因呢
I'm sure some of you have dealt with electrophoresis gels in the past and it's really just a slab of something like Jell-O where you can put a sample at one end of the Jell-O, your sample of fragmented DNA.
我相信在座肯定有些已经接触过电泳凝胶,真的挺像一块板状果冻的,你可以把一段样本放在"果冻"的一端,你的DNA片段样本
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