[問題]GWD13-9

[blacklilu]

Professor Vasquez gave a quiz to two classes. Was the range of scores for the first class equal to the range of scores for the second class?
(1) In each class, the number of students taking the quiz was 26, and the lowest score in each class was 70.
(2) In each class, the average (arithmetic mean) score on the quiz was 85.


Ans : E

ㄟ... 說實在這題應該很簡單....可是我還是有點轉不過來，2 )為何不行呀？ :-$

[marco]

這一題是問你range,所以給你平均數並不代表什麼阿??

[chris8888]

要知道range score, 必須要知道highest score and lowest score, 你看看欠缺了哪幾項? 你就知道答案了