Try your hand on this problem and see how to goes:
http://web2.0calc.com/questions/probability_882#r2
(Computer simulation)
The EXACT probability is: \(\frac{129\ 230\ 640}{6^{11}} = \frac{129\ 230\ 640}{362\ 797\ 056} = 0.356206418609968 = 35.621\ \%\)
