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An analyst collected the following data for an asset:Possible Rate of Return (Percent) Probability-10% 0.20-5 0.3010 0.4025 0.10The variance of returns for the asset are closest to:A. 121.B. 188.C. 213.
答案是A
但是我怎么看那个答案解释怎么不对,麻烦大家来看看这道题到底是怎么回事?
哦。。。我发现我哪里错了。那个mock上的答案的解法是错的,但是答案本身是对的~~
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