Area generalvariance function is obtained according to nesting theory.
借助套合理论建立区域性通用变异函数。
2
The equally-weighted case that I gave a minute ago was one where the two assets had--were at the same-- had the same expected return and the same variance; but this is quite a bit more general.
我刚刚举的相同权重的例子,表示两种资产-,有相同的预期收益和相同的方差;,但这种情况更加普遍一些。
3
Z936 would be a better inbred line, it was not only higher in general combining ability, but also higher in variance of specific combining ability.