问题
单项选择题
Consider the following set of stock returns: 12%, 23%, 27%, 10%, 7%, 20%, 15%. The third quartile is:（）
A. 10.0%.
B. 23%.
C. 20.0%.
答案
参考答案：B
解析：
The third quartile is calculated as: Ly=(7+1)(75/100)=6.When we order the observations in ascending order: 7%, 10%, 12%, 15%, 20%, 23%, 27%, "23%" is the sixth observation from the left.