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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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That's got the lowest possible standard deviation of expected return and that's 25% stocks and 75% bonds with this sample period.
这个组合预期回报的标准差最小,在这一点上，投资组合,由25%的股票和75%的债券构成。
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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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When you get--this is Rituparna, counting the leaves on a tree-- you can estimate, from a sample, the population expected values.
如果你...像数叶子的睿都巴若那一样,只有部分样本的话,你可以来估计总体均值
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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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If you go to the course website there is a sample concept sheet that you'll be able to read.
如果大家去课程网站,能看到一份示例,供你们下载阅读
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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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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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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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The absence of this smaller region tells you that this sample came from a sickle patient.
小片段的缺失就能告诉你,该样本是取自病人的
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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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You've got a sample of it on your handout.
你们手上的讲稿里有一份这首诗。
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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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Do they get sample bottles coming in?
他们一开始就得到了样本瓶了吗？
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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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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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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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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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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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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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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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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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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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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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