NO.PZ2023091601000005
问题如下：
Suppose
that the return on a company's stock is related to the rating given to the
company by an analyst. Analyst ratings can be positive, neutral, or negative,
and are labeled - 1, 0, or 1 (respectively). What is the distribution of the
return on the company's stock?
选项：
A.
Lognormal distribution
B.
Conditional
lognormal distribution
C.
Conditional normal distribution
D.
Normal distribution
解释：
如题，看到这题没什么头绪
