1 3
2 B
3 4
4 10
A 2
8 1
第一列是调查的信用卡的拥有数,第二列是对应的人数,如第一行的意思就是三个人每人拥有一张信用卡,问信用卡拥有数的中位数?
(1)A=6
(2)B=7
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sysadmin
提问:
If 500 is the mutiple of 100 that is closest to x and 400 is the multiple of 100 that is closest to y,which multiple of 100 is closest to x+y? (1)x小于500 (2)y小于400