Math problem, help needed

What is the greatest possible absolute difference between the mean and the median of five single-digit positive integers? 

所有跟帖： 

• 啊。。。 -古代的事物- ♂ (110 bytes) () 12/08/2018 postreply 16:13:10

• 1，1，1，9，9 -yddad- ♂ (0 bytes) () 12/08/2018 postreply 16:16:18

• hopefully 3.25? -Chauhan- ♂ (41 bytes) () 12/08/2018 postreply 16:13:38

• medium=1; mean=(3*1+9*2)/5=21/5=4.2; difference=4.2-1=3.2 -木木真木- ♂ (0 bytes) () 12/08/2018 postreply 19:00:58

• 两个姐 -阳光玉兔- ♀ (100 bytes) () 12/08/2018 postreply 16:18:14

• 能家问的是绝对zi2 -古代的事物- ♂ (0 bytes) () 12/08/2018 postreply 16:22:48

• 所以有两个姐呀。 -木木真木- ♂ (0 bytes) () 12/08/2018 postreply 19:28:33

• Thanks! -Smilee- ♀ (0 bytes) () 12/08/2018 postreply 16:20:16

• 男ID的数学差点啊！脑子只朝一个方向转！ -Yangtze430030- ♂ (0 bytes) () 12/10/2018 postreply 09:31:43