问题如下图：如何看出2和3是完全负相关
选项：
A. 
B. 
C. 
解释：
Shimin_CPA税法主讲、CFA教研 · 2018年09月22日
同学你好，最精确的方法是按计算器。
[2nd][7]进入data模式，依次输入X01=12，Y01=0；X02=6，Y02=6；X03=0，Y03=12，
然后[2nd][8]进入STAT模式，一直按下箭头，直到屏幕出现b=，算出来是-1。说明两组数据的相关性=-1。
Shimin_CPA税法主讲、CFA教研 · 2018年11月09日
勘误一下，"直到屏幕出现 r="，r代表的是correlation
鸟 · 2019年07月02日
这道题可不可以这么理解，2和3的数据组建坐标系，得出的是斜率负一的直线，所以上一题的perfect negative选出来了。这道题的话，2和3组合的cov一定也是数值最大的负数，所以选C？
NO.PZ2015121801000067问题如下analyst hma the following return projections for eaof three possible outcomes with equlikelihooof occurrence:If the analyst constructs two-asset portfolios thare equally-weighte whipair of assets hthe lowest expectestanrviation?A.Asset 1 anAsset 2.B.Asset 1 anAsset 3.C.Asset 2 anAsset 3.is correct.equally weighteportfolio of Asset 2 anAsset 3 will have the lowest portfolio stanrviation, because for eaoutcome, the portfolio hthe same expectereturn (they are perfectly negatively correlate.这里的outcome所指是各资产每次取样各自的标准差么？
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