expected variance
网络释义
... 残余方差;residual variance 期望方差;预期方差;expected variance 回归方差;regression variance ...
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expected value & variance 期望值与方差
minimum expected posterior variance 最小期望后验方差
expected value and variance 期望值和方差
expected idle capacity variance 期望闲置能力差异
原声例句
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I'm going to drop more than the independence assumption, I'm going to assume that the assets don't have the same expected return and they don't have the same expected variance.
我还想做出一些改动，即这些资产的预期收益率,是各不相同的,方差也是不同的。
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If you're comparing two portfolios with the same expected return, then you want the one with the lower variance.
比较两个有相同预期收益率的投资组合时，你会选择方差小的那一个。
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Expected value is good and variance is bad because that's risk; that's uncertainty.
期望值越高越好,方差就相反,因为方差代表着风险,也就是不确定性
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