网络释义专业释义
variance of mean residence time 平均滞留时间的方差
model of mean-variance 均值方差模型
Fitting Variance of Mean 平均拟合方差
change-point of mean and variance 均值与方差变点
weighted error variance of mean 加权均方误差
fitting relative variance of mean 平均拟合相对方差
mean-variance theory of portfolio selection 资产组合选择的均值方差理论
原声例句
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In fact, I have it--suppose we have three assets and we want to compute the efficient portfolio frontier, the mean and variance of the portfolio.
事实上，假如我们拥有三种资产,我们想计算有效边界，及投资组合的均值和方差。
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But, in between, if some other number, it'll be some blend of the--mean and variance of--the portfolio will be some blend of the mean and variance of the two assets.
但如果是在0和1之间的其他数值，这个投资组合的均值和方差将会是,两项资产各自的均值和方差的综合结果。
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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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