Well..divided into 6/6 first to define a heavier group is certainly right. Randomly select 3/3 will result another heavier group.公仔箱論壇, O, c i$ ^; }: m+ Q2 ~1 a. `/ w' X: x
The problem is we don't know the weight of each individual ball, so it will not be accurate to figure out which ball is irregular by only weight them once.
2 ]' m p9 k. ]- M' Y; Otvb now,tvbnow,bttvb |
發表於 2008-10-14 01:27 AM
| 
~
