举报
DS. the range of group of junior and senior is 21,and the median of junior is
less than the median of senior, and is the greatest of junior equal to the least
of senior.
(1) The range of junior is 11
(2) the range of senior is 10
选C
能讲讲怎么做吗?看不明白
一战啊???ZNB
恭喜恭喜
发表回复
手机版|ChaseDream|GMT+8, 2025-10-20 21:33 京公网安备11010202008513号 京ICP证101109号 京ICP备12012021号
ChaseDream 论坛
© 2003-2025 ChaseDream.com. All Rights Reserved.