1.求平均数：18, 26, 29, 22, 30, 45, 3, 43

2.求极差：41, 4, 51, 20, 6, 32

3.求平均数：11, 40, 46, 18, 44, 21

4.求极差：32, 36, 50, 40, 4, 26

5.求众数：6, 6, 48, 37, 37, 37, 40, 54

6.求中位数：40, 7, 45, 2, 31, 30, 20

7.求平均数：37, 23, 41, 59, 54, 55, 11

8.求中位数：59, 6, 19, 29, 30

9.求中位数：41, 8, 19, 30, 18, 29, 16, 13

10.求极差：9, 52, 57, 11, 33, 33, 52

11.求众数：46, 14, 54, 4, 6, 46

12.求平均数：6, 26, 21, 11, 23, 21, 18

13.求极差：49, 59, 33, 46, 51, 20

14.求众数：57, 36, 57, 53, 53, 53

15.求极差：43, 20, 28, 26, 13, 18