老师，Correlation不是-1和+1都是强线性吗？

NO.PZ2017092702000071 问题如下 All else being equal, the correlation between two assets approaches +1.0, the versification benefits: A.crease. B.stthe same. C.increase. A is correct.the correlation between two assets approaches +1, versification benefits crease. In other wor, increasingly positive correlation incates increasingly strong positive linerelationship anfewer versification benefits.ρ越大，组合方差σp的平方就越大，也就是风险越大。所以根据题干描述，当ρ逐渐向+1增加时，分散化的效果会越来越差 这道题的意思是或， 在组合越分散的情况下， versification benefits 越大吗， 为什么呢？

NO.PZ2017092702000071问题如下All else being equal, the correlation between two assets approaches +1.0, the versification benefits:A.crease. B.stthe same. C.increase. A is correct.the correlation between two assets approaches +1, versification benefits crease. In other wor, increasingly positive correlation incates increasingly strong positive linerelationship anfewer versification benefits.ρ越大，组合方差σp的平方就越大，也就是风险越大。所以根据题干描述，当ρ逐渐向+1增加时，分散化的效果会越来越差 1.correlation=0,只代表非线性，不代表独立。2.但两者独立，代表非线性，=0。3.因为取值范围是-1到1,越靠近1，越强的线性关系，也就代表没有分散化的作用。

NO.PZ2017092702000071 问题如下 All else being equal, the correlation between two assets approaches +1.0, the versification benefits: A.crease. B.stthe same. C.increase. A is correct.the correlation between two assets approaches +1, versification benefits crease. In other wor, increasingly positive correlation incates increasingly strong positive linerelationship anfewer versification benefits.ρ越大，组合方差σp的平方就越大，也就是风险越大。所以根据题干描述，当ρ逐渐向+1增加时，分散化的效果会越来越差 老师 可以把方差标准差 correlation这些特殊符号给我分别打出来一下吗？还有其他会出现的特殊符号。我每次看见那些特殊符号都不知道什么是什么

NO.PZ2017092702000071 stthe same. increase. A is correct. the correlation between two assets approaches +1, versification benefits crease. In other wor, increasingly positive correlation incates increasingly strong positive linerelationship anfewer versification benefits. ρ越大，组合方差σp的平方就越大，也就是风险越大。所以根据题干描述，当ρ逐渐向+1增加时，分散化的效果会越来越差 All else being equal啥意思啊，对解题有啥影响么