You can't think out a number to describe the twenty-five standard deviation event; it's just too large a number for any of us to comprehend.

你无法想出一个数字来描述25个标准差事件；这个数字太大了，我们任何人都无法理解。

youdao

The Six Sigma Black Belt should be able to compute the mean and standard deviation from a grouped frequency distribution.

六西格玛黑带应该能够计算出一个分组发生频次分布数据的均值和标准偏差。

youdao

And you can calculate the standard deviation that way.

你可以用这种方法计算标准偏差。

youdao

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。

耶鲁公开课 - 金融市场课程节选

It shows the standard deviation of the return on the portfolio as a function of the expected return on the portfolio.

它是投资组合的收益标准差,关于预期收益率的函数图像。

耶鲁公开课 - 金融市场课程节选

7% 77% is class average and the standard deviation was 17% so you can see where things lie. 50% is a pass.

7是平均水平，标准偏差是%,这就是事情所在，50%就及格。

麻省理工公开课 - 固态化学导论课程节选

Investments with a high standard deviation over one year have a lower standard deviation when measured over longer periods.

FORBES: The Efficient Frontier

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).

FORBES: Are Investors Concerned About Rising Gas Prices?

Bullish sentiment is just slightly above one standard deviation from the historical average and bearish sentiment is within one standard deviation.

FORBES: Why Is Bullish Sentiment Near Two And A Half Year High?