aileen20180623 · 2020年02月11日
* 问题详情，请 查看题干
问题如下：
7. The measure of central tendency that Ritter will most likely recommend is the:
选项：
A.median.
B.harmonic mean.
C.arithmetic mean.
解释：
B is correct.
The harmonic mean is sometimes used to reduce the impact of large outliers
这道题目为什么不选者median ？还是说harmonic mean 更合理？
NO.PZ201512300100001107 您好，您有调和平均数的算法公式，用个例题展示一下，我忘了一级怎么算它了。
harmonic mean. arithmetic mean. B is correct. The harmonic meis sometimes useto rethe impaof large outliers ——whiare typically the major concern in using the arithmetic memultiple—— but not the impaof small outliers (i.e., those close to zero). The harmonic memaggravate the impaof small outliers, but suoutliers are bounzero on the wnsi.调和平均可以去除异常值，但是mean也可以啊，为什么不选A？
请问老师，怎么理解答案里的最后一句话，bouncezero.
这题是考哪个考点？对应讲义哪里呢？谢谢！
