NO.PZ2023052302000004
问题如下：
A portfolio manager invests EUR5,000 annually in a security for four years at the following prices:
The average price is best represented as the:
选项：
A.
harmonic mean of EUR76.48
B.
geometric mean of EUR77.26
C.
arithmetic average of EUR78.00
解释：
A is correct. The harmonic mean is appropriate for determining the average price per unit as it gives equal weight to each data point and reduces the potential influence of outliers. It is calculated as follows:
这题从哪里能看出来是average investment strategy
