单选题
编号：2692206
1. Alan Barnes, CFA, is interested in the expected quarterly return on FTSE 100 stock index. He has data for the last five years and calculates the average return on the index over the last 20 quarters. This average return:
- A.Is different from the statistic he is trying to estimate by the amount of the sampling error.
- B.Overstates the return because he should divide by the square root of 20 when using a mean value.
- C.Overstates the expected return because he should have used the geometric mean and not the simple average.