问题如下图：
选项：
A. 
B. 
C. 
解释：
请问为什么不是3/20呢？谢谢
NO.PZ2015120604000100问题如下investor purchase a stock's whiinitipriis $20 anits year-enpriis $25, whis its continuously compounannurate of return,assuming the investor sell the stothe enof the year? A.16.64%. B.22.31%. C.18.00%. B is correct.The stock's continuously compounannurate of return is ln(25 /20) = 22.31%.老师您好，请问这个考点在PPT哪一页呢？
NO.PZ2015120604000100 22.31%. 18.00%. B is correct. The stock's continuously compounannurate of return is ln(25 /20) = 22.31%.没找到😂具体的位置。。。
请老师一下这道题
请问为什么不是LN｛（25-20）/20｝？
为什么是用这个公式，而不是用5/20
