Everything worked as planned. Everyone expected the third moon-landing flight, Apollo Thirteen, would go as well as the first two.
VOA: special.2009.07.22
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。
If she drops out, Jean wins for sure, So the expected distance away from her of the winning candidate is two away.
如果她退出,吉恩就肯定获胜,预期获胜者与她之间,的距离是两个位置
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