OG PS-208

[mimichu]

S is a set containing 9 different numbers. T is a set containing 8 different numbers, all of which are members of S. Which of the following statements cannot be true?

A. The mean of S is equal to the mean of T
B. The median of S is equal to the median of T
C. The range of S is equal to the range of T
D. The mean of S is greater than the mean of T
E. The range of S is less than the range of T

ANS E 請問有人會嗎?

[FIG]

s是9個不同數的集合
t是8個不同數的集合
t屬於s=>s除了t的那8個數外，還多一個數
so..
a:可能，s多的那個數等於mean
b:可能，情況很多..
c:可能，s多的那個數不會影響range即可
d:可能，s多的那個數大於mean
e:不可能，s的數比t多 range不可能比較小