Then it comparatively analyzes some basic statistic of CCFI and BDI, which include mean, standard deviation, skewness, kurtosis, autocorrelation, and so on.

第二章对CCFI和BDI及CCFI分航线指数之间平均收益率、标准差、偏度、峰度、序列相关性等基本统计量进行了比较分析。

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Moreover, the profit of contrarian strategies is significantly improved when the mean-standard deviation ratio optimization allocation is used.

均值-标准差比率优化配置可以显著地提高反向策略的赢利。

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The normal population characteristics, such as the mean, standard deviation, percentile, percentage and coefficient of variation, are often tested in engineering.

正态母体特征值（母体均值、百分位值、百分率、标准差和变异系数等）的检验是工程中常见的问题。

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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

It could be normal, everything, that would be a Gaussian, where if you recall there was a mean, and a standard deviation, and most values were going to be close to the mean.

可能是正态分布，也就是高斯分布，只要有平均值和标准偏差值，你就可以进行调用，大部分的值都是集中在平均值附近的。

麻省理工公开课 - 计算机科学及编程导论课程节选

What we want to do now is compute the mean and variance of the portfolio-- or the mean and standard deviation, since standard deviation is the square root of the variance-- for different combinations of the portfolios.

我们现在要做的是,计算这个投资组合的均值和方差-,或者均值和标准差，因为标准差的平方就等于方差-,这对任何投资组合都是一样的。

耶鲁公开课 - 金融市场课程节选

Other measures also suggest sentiment is running hot, including the spread between bullish and bearish sentiment (37.6 percentage points) and the standard deviation (bullish sentiment is more than one standard deviation above the historical mean).

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If life in these United States were a role playing game, the lowest difficulty setting would probably be a straight white male who is one standard deviation above mean height. (Unless you are a good enough athlete to get into the NBA being much taller than that is not so good) Tall people have never been denied the right to vote.

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The MSCI Emerging Markets Index is only about a half of a standard deviation from its mean over the same time frame.

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