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They include saxophonists Boney James and Dave Koz and pianist and composer Joe Sample.
VOA: special.2010.08.02
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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
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Get loads of, you can sample the food which is nice.
还会得到很多东西，你可以试吃那些美味的食物。
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There were small pieces of plastic in every sample.
VOA: special.2009.09.22
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We can define it in a couple of different ways depending on whether we're talking about sample mean or population mean.
我们有几种不同的方式去定义这个概念,取决于我们指的是,样本均值还是总体均值
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"Most of the paint brands that we looked at had at least one sample that was above ten thousand parts per million, which is over a hundred times the current U.S.standard."
VOA: special.2009.08.31
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Do I go out to Harvard yard and take a random sample ? of sophomores to study meditation?
是不是可以在哈佛大二学生里随机抽样,来研究冥想？
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"It has so much capability, so much more capability than any other vehicle, that I think we can start to contemplate missions like a Mars sample return, which requires a tremendous amount of lift capability because you've got to send a lander to Mars that still has enough propellant to return to Earth."
VOA: special.2011.04.11
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So what researchers do is they hope to get enough people in a sample, where overall, you hope to be capturing normal intake.
所以研究者做的是,让尽可能多的人群进入样本,总体上你就可以得到正常的摄入量了
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Sometimes, we hadso many people staying with us that every room was filled,with travelers, you know, folks livingout of their suitcases and hat casesand sample cases.
VOA: standard.other
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Some of the sample was Jewish.
调查中有一些人是犹太人
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The handlers note where the scat is found and take a sample for analysis to determine if it is from a tiger and to check the animal's health.
VOA: standard.2010.02.22
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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
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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
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I had my suspicions about the milkshake, and so I took a sample and I rushed it down to the lab.
我怀疑奶昔有问题，于是我取了一份样品，跑到实验室化验。
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And, in fact there's a technique of analysis used today that's called Rutherford back scattering where people actually saw that this is a means of identifying the substance, the sample.
事实上这是现在用的一种分析技术,称作卢瑟福背散射,就是人们实际上看到的那样,这是鉴别物质样品的一种方法。
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Well, let me come up with a sample set of elements here and let me go ahead and just get some fresh white board space.
下面我用一个元素的样本集来说明,我先找一些可用的白板空间。
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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“
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That means--his calculations are very different than the ones I have because he has a much longer sample period.
那表明。。。他的计算结果与我的大相径庭,因为它数据的取样跨度比我的长多了。
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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
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ll look at research and read research about other people, about large sample sizes.
当然你们可以看和阅读关于别人的研究，Of，course，you’,有大量的样本。
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Now, he's using a much longer sample than I did, so he's not going to get this tangency portfolio that I did.
他的样本跨度比我的要大多了，所以他得出的切线资产组合会和我的不同。
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You don't have to count all the leaves on the tree, you can take a sample and you count that and then you multiply.
你不必数树上所有的叶子,你可以抽样,然后计数,再相乘即可
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They might say my sample period was off, ... but that's what the theory-- ... using my data for the sample period that I computed-- the expected returns and co-variances says one should do.
他们可能说我的采样周期是有问题的，不过我的结果都是靠理论-,我采用自己收集的数据计算出-,预期收益和协方差可以用来指导我们的投资行为。
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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
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Somebody told me, by the way, that the sample concept sheet that we have listed on the website couldn't be downloaded, so we'll fix that, but we'll also send you out by email a sample concept sheet, along with guidelines for how to prepare them.
有人告诉我,顺便说下,网站上所列的观点报告范例不能下载,我们会进行修复的,同时我们也会通过电子邮件将范例报告,以及备写指南一并发给你们
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Well let's talk about some mechanisms for using this and I'll start with a simple example of how one can detect a gene in a fluid, in a blood sample for example, where that gene is unknown.
我们来说说这项技术在实际应用中的机制,先从一个简单例子着手,如何在一个血样中,侦测是否存在某段基因序列,某段未知基因序列
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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%
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And you know, even if people are doing these things anonymously, or they're part of a big national sample where they're one of thousands and thousands of subjects, people don't necessarily like to say that they're doing something that they don't think they should be doing.
你知道,即使人们参加的是匿名调查,或他们是全国性样本中的一员,他们是那数以千计万计总体中的一员,人们似乎也没有必要说出,他们做的一些,自认为不应该做的事情
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If you have a sample with n observations, it's the summation I = 1 to n of xi/n--that's the average.
如果你有n个观测值,对Xi从i=1到n求和再除以n
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