NO.PZ202306130100003303
问题如下：
Based on Exhibit 1 and Exhibit 2, the correlation between the debt ratio and the short interest ratio is closest to:
选项：
A.
−0.3054.
B.
0.0933.
C.
0.3054.
解释：
A is correct. In simple regression, the R2 is the square of the pairwise correlation. Because the slope coefficient is negative, the correlation is the negative of the square root of 0.0933, or −0.3055.
这个为什么不是slope，即 -4.1589?
