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For 2 balls, you have 3 possible states
2-1) 2R
2-2) 1R 1B
2-3) 2B
so using a notation of #Balls-State,
from 3-1, you must pick 2 R and add 1B, so you end up at 2-2.
from 3-2, there are 2 cases: pick 2 red, end up at 2-3
or pick 1R1B and end up at 2-1
from 3-3, you always end up at 2-2
from 3-4, you always end up with 2-3
Last edited by dimbulb; 11-25-2003 at 04:57 PM..
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