询JJ-177

saibei008

177. what percent is the average mean of the sum?

(1) 8 numbers (2) the sum is a XXX (number)

INE>INE>INE>INE>选A

我不明白这道题哦，A怎么能充分呢？

saibei008

thanks   a    lot   !!!!!!![em08]

qwrersaa

如果题目是问"平均数是总数的百分之几"的话，那么可以这么想：

sum/8=mean，

so，mean/sum=1/8=12。5%

对吧？