NO.PZ202106160300004308
问题如下：
Based on Exhibit 2, the short interest ratio expected for MQD Corporation is closest to:
选项：
A.3.8339 B.5.4975. C.6.2462.解释：
A is correct. The predicted value of the short interest ratio = 5.4975 + (-4.1589 x 0.40) = 5.4975-1.6636 = 3.8339.
请问老师，0.4是哪来的
