双语例句原声例句
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I don't know where that is, that disappeared on the blackboard, then putting the time equal to 1 second into this formula.
我不知道我写在哪儿了,已经不在黑板上了,然后把时间等于1秒代入方程
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This is a matter of simple algebra, of taking this and putting it here.
本质上讲,这是简单的代数运算,把这个式子代入上面的式子
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Then, once we did that we could plug that into the formula that I gave you last time and get the standard deviation of the portfolio and the expected return on the portfolio.
再将估算出的数值代入到,上节课给你们的公式中,就能得到资产投资组合的标准差,和该投资组合的预期收益率
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