[計量] PP-T1-DS-175
The sum of the integers in list S is the same as the sum of the integers in
list T. Does S contain more integers than T ?
(1) The average (arithmetic mean) of the integers in S is less than the
average of the integers in T.
(2) The median of the integers in S is greater than the median of the
integers in T.
答案 A
請問一下各位
sum=avg*個數
在avg和sum是正數的情況下，
avg越小，個數就越多，這部分沒問題；
但若遇到sum<0情況時，情況會完全相反，
sum<0 必定avg<0
avg越小 個數就越少
這樣有兩種解釋，是否還符合資料充分性嗎??
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 140.113.97.181
推
03/15 19:48, , 1F
03/15 19:48, 1F
GMAT 近期熱門文章
PTT職涯區 即時熱門文章
13
49
