Normally distributed data assumes that about 68% of the values in the sample are within 1 standard deviation of the mean.

正态分布数据认为，样本中约68%的数值分布在距离平均值为1的标准偏差之内。

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Measurement of sample: single sample automatic measuring, measuring the number of times 2, 3, 5, 10, 50 set, measured at the end gives the average value and standard deviation.

样品测量：单样品自动测量，测量次数2、3、5、10、50次任意设定，测量结束给出平均值和标准偏差。

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The standard deviation of a sampling distribution. It is the statistic used to make statements about the accuracy of estimates based on sample information.

抽样分布的标准偏差。统计学上用来说明从样本预测的数据的准确性。

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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。

耶鲁公开课 - 金融市场课程节选