The average size is 3,131 square feet, with a standard deviation of 655 square feet. (Standard deviation is a statistical measure of variance.)

平均大小为 3,131 平方英尺，标准偏差为 655 平方英尺（标准偏差是一个描述差异的统计量度）。

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Their analysis included 1131 children from a family-based food-allergy cohort. Mean age was 6.5 years, with a standard deviation of 4.3 years.

该研究包括来自于具有食物变态反应家族史的1131名儿童，平均年龄6.5岁，标准差4.3年。

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The results show that the TL ages are in reasonable agreement with archaeological dates within a standard deviation of 27%. Such error can be accepted in porcelain dating.

结果表明，热释光年代与考古年代在一个标准偏差为2 7%以内的一致性非常良好。

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Over this time period, that portfolio had an expected return of something like a little over 9% and it had a standard deviation of a little over 9%.

在这个时间段，这个投资组合的预期收益率是,9%多一点%,标准差是9%多一点。

耶鲁公开课 - 金融市场课程节选

So, for example, at an annual expected return of 12% if I have a portfolio of stocks, bonds, and oil I can get a standard deviation of something like 8% on my portfolio.

例如，在年预期收益12%的情况下%,我有股票，债券和石油的投资组合,在这个组合里,我的投资组合可以取到8%的标准差。

耶鲁公开课 - 金融市场课程节选

And then I could also do a Gaussian one here, with the mean of and the standard deviation of volatility divided by 2.

然后我在这里再写一个高斯分布的函数，它的浮动值的平均值和,标准偏差值都除了2。

麻省理工公开课 - 计算机科学及编程导论课程节选

December is also the least historically volatile month, with a standard deviation of returns of 3.17%.

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It's lost 0.3% a year over three years with a standard deviation of 14%.

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Ideally, reviews and user reviews should generally fall within a standard deviation of each other.

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