convergence in square mean [数] 均方收敛
mean square error 均方差 ; [数] 均方误差 ; 均方误
root mean square 均方根 ; 有效值 ; 平方平均数
mean square [数] 均方 ; 均方值 ; 均方差
root mean square value 方均根值 ; 实效值
square mean convergence [数] 平方平均收敛
root mean square error 均方根误差
Weighted mean square 加权平均方差 ; [数] 加权均方
error mean square 误差均方 ; 误差方差 ; 也被称为误差的均方
All right? I mean, I can make money at Harvard Square doing this stuff, right?
对不对?【鼓掌】我意思是,我可以在哈佛广场,靠做这个赚钱对不对?
So to replace that nuclear power plant with wind would mean dedicating nearly 280 square miles of land to a gigantic wind farm, which would be about the size of New York City.
因此,要用风电场取代核电站意味着,一个大型风电场要占地近280平方英里,这几乎与纽约市的面积相当。
All right? I mean, I can make money at Harvard Square doing this stuff, right?
对不对?【鼓掌】我意思是,我可以在哈佛广场,靠做这个赚钱对不对?
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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