NO.PZ202306050200000101
问题如下：
The tenth percentile corresponds to observations in bin(s):
选项：
A.
2.
B.
1 and 2.
C.
19 and 20.
解释：
B is correct. The tenth percentile corresponds to the lowest 10 percent of the
observations in the sample, which are in bins 1 and 2.
十分位不是在第10%，应该选a吗
