涛涛GWD-5-34

jasoncz1

Professor Vásquez 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.

我的思路是1) 不可以因为算不出最高分.  2) 也算不出最高分, 只知道除了70外的总数是多少. 

请帮忙看对不?  谢谢.

super_pig

嗯，你对于1，2单独的思路是正确的~

1+2也不充分~

jasoncz1

谢谢班主确定!