Question 610978
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Hi, 
A urn contain 30 colored balls: 8 Purple, 10 Orange and 12 Brown
Three of the balls are randomly selected from the Urn. 
 P(all brown) = {{{(12/30)(11/29)(10/28)= (2/5)(11/29)(5/14)= (11/(7*29)) = 11/203}}}