NO.PZ2020010304000030
问题如下：
When dealing with two random variables, how is coskewness interpreted?
解释：
Coskewness measures the likelihood of one variable taking a large directional value whenever the other variable is large in magnitude. When there is no sensitivity to the direction of one variable to the magnitude of the other, the coskewness measures are 0.
请问题目是不是超纲，还用记住吗