document.write( "Question 1026008: An urn contains red balls and 3 green balls. A ball is drawn randomly and 6 more of the same color are added to the urn. Then another ball is drawn. Let R1= Event the ball # is red and let G1= Event ball # is green. Find Pr(R1|R2) \n" ); document.write( "
Algebra.Com's Answer #641493 by robertb(5830)\"\" \"About 
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How many red balls?? \n" ); document.write( "
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