NO.PZ202106160300003601
问题如下：
The coefficient of variation is closest to:
选项：
A.0.02 B.0.42 C.2.41解释：
B is correct. The coefficient of variation is the ratio of the standard deviation to the arithmetic average, or
RT
jay1180 · 2022年09月19日
* 问题详情，请 查看题干
NO.PZ202106160300003601
问题如下：
The coefficient of variation is closest to:
选项：
A.0.02 B.0.42 C.2.41解释：
B is correct. The coefficient of variation is the ratio of the standard deviation to the arithmetic average, or
RT
我没理解为啥 0.001723要开根号。。variance开根号=standard deviation？
