问题 单项选择题

An analyst does research about covariance. If the standard deviation of returns of an asset is 0.8367%, the covariance of the asset's returns with themselves (in unit of percent squared) is closest to:()

A. 0.70

B. 0.91

C. 1.00

答案

参考答案:A

解析:

变量与自身的协方差是其标准差的平方,即(0.8367)2=0.70。

选择题
单项选择题 A1型题