下面哪个 list 的平均数比 median 中位数大?
I. 8/7,7/6,6/5,5/4,4/3
II. 2/3,3/4,4/5,5/6,6/7
III. 不记得了,反正分母都是3,很好算
A 都不是
B I only
C I and II
DII
E I、II and III
ziyuenlau 发表于 2017-10-20 20:41
I. 8/7,7/6,6/5,5/4,4/3
average = 1.21, median = 1.2
欢迎光临 ChaseDream (https://forum.chasedream.com/) | Powered by Discuz! X3.3 |