NO.PZ2021061603000038
问题如下：
Homoskedasticity is best described as the situation in which the variance of the residuals of a regression is:
选项：
A.zero
B.normally distributed
C.constant across observations
解释：
C is correct. Homoskedasticity is the situation in which the variance of the residuals is constant across the observations.
不是说残差项符合正太分布么。那B也对哇
