document.write( "Question 475898: Two dice are rolled. Find the probability of getting a sum of 8 if the number on one die is a 5.\r
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Algebra.Com's Answer #326337 by richard1234(7193)![]() ![]() You can put this solution on YOUR website! You are given that one die is a 5, so we only consider the pairs with at least one 5:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "{1,5},{2,5},...{6,5}\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "{5,1},{5,2},...,{5,6}\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "There are eleven cases (we have to subtract 1 because {5,5} is counted twice). We get a sum of 8 if we get {5,3} or {3,5} so the probability is 2/11. \n" ); document.write( " |