Well..divided into 6/6 first to define a heavier group is certainly right. Randomly select 3/3 will result another heavier group.
' J/ g( n+ G/ n+ S3 E4 i公仔箱論壇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.
" v" m3 X7 |& W% k5 C% ?! Stvb now,tvbnow,bttvb |
發表於 2008-10-15 03:38 PM
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