That's your root mean square.

那就是你的均方根。

youdao

The results of the test data indicate that the prediction system is reliable and the root of mean square error is about 15%.

对测试数据的预测结果表明，该预测系统能够可靠工作，预测结果的均方根误差在15%左右。

youdao

At last, the relations of load with average and root mean square of corresponding LMPs are approximately linearity in different load situations.

最后，在不同负荷的情形下，负荷与其对应电价的均值、标准差之间存在着一种近似的线性关系。

youdao

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。

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