我想问下,线性关系最弱,并不是风险最小,correlation越小,分散化越好,也就是风险最小,所以a选项是风险最小的,b选项是线性关系最弱的,我的理解对吗?
问题如下图:
选项:
A.
B.
C.
解释:
NO.PZ2015120601000009 −0.22. 0.35. B is correct. Correlations nepositive 1.00 exhibit strong positive linearity; correlations nenegative 1.00 exhibit strong negative linearity. Correlations of zero incate no linerelation between variables. The closer the correlation is to zero, the weaker is the linerelationship. 线性关系,相关系数,协方差,三者之间(或者还有更多)的性质结论是什么?记串了
我不是提问这一题,我想问讲义这一题。按照老师的步骤,我得到图2里面p(A)的计算方法。可是这跟全概率公式对不上吧,跟乘法法则也对不上吧?