NO.PZ2023091601000120
问题如下：
You are conducting an
ordinary least squares regression of the returns on stocks Y and X as Y = a +
b×X + ε based on the past three year’s daily adjusted closing price data. Prior
to conducting the regression, you calculated the following information from the
data:
What
is the slope of the resulting regression line?
选项：
A.
0.35
B.
0.45
C.
0.59
D.
0.77
解释：
老师，算不出C，哪里错了呢
