This is important, because it shows that looking at just the average is not enough, especially if your standard deviation is a large number.

这是很重要的，因为它说明了，仅查看平均值是不够的，特别是当您的标准偏差非常大的时候。

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In Figure 11, the overall average response time dropped by slightly more then half, with the standard deviation well under 1 second.

在图11中，整体的平均响应时间下降了一半以上，并且标准偏差低于1秒。

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Average, minimum, maximum, and standard deviation response time or connection time.

平均、最小、最大，以及标准偏差应答时间或者链接时间。

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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

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?

Placing asset categories on the efficient frontier requires knowing their historical average return and standard deviation.

FORBES: Asset Allocation and the Efficient Frontier

Once you know the average return, the standard deviation of each index and the correlation coefficient between each pair of indexes, the rest is math.

FORBES: Asset Allocation and the Efficient Frontier