document.write( "Question 1034747: Assume you are rolling two dice; the first one is red, and the second one is green. Use systematic listing to determine the number of ways you can roll a total of 9 on the two dice. \n" ); document.write( "
Algebra.Com's Answer #649423 by jim_thompson5910(35256)![]() ![]() ![]() You can put this solution on YOUR website! Let's list out the sample space\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "{1, 1} \n" ); document.write( "{1, 2} \n" ); document.write( "{1, 3} \n" ); document.write( "{1, 4} \n" ); document.write( "{1, 5} \n" ); document.write( "{1, 6} \n" ); document.write( "{2, 1} \n" ); document.write( "{2, 2} \n" ); document.write( "{2, 3} \n" ); document.write( "{2, 4} \n" ); document.write( "{2, 5} \n" ); document.write( "{2, 6} \n" ); document.write( "{3, 1} \n" ); document.write( "{3, 2} \n" ); document.write( "{3, 3} \n" ); document.write( "{3, 4} \n" ); document.write( "{3, 5} \n" ); document.write( "{3, 6} \n" ); document.write( "{4, 1} \n" ); document.write( "{4, 2} \n" ); document.write( "{4, 3} \n" ); document.write( "{4, 4} \n" ); document.write( "{4, 5} \n" ); document.write( "{4, 6} \n" ); document.write( "{5, 1} \n" ); document.write( "{5, 2} \n" ); document.write( "{5, 3} \n" ); document.write( "{5, 4} \n" ); document.write( "{5, 5} \n" ); document.write( "{5, 6} \n" ); document.write( "{6, 1} \n" ); document.write( "{6, 2} \n" ); document.write( "{6, 3} \n" ); document.write( "{6, 4} \n" ); document.write( "{6, 5} \n" ); document.write( "{6, 6}\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "This is the entire set of possible outcomes. For example, {4, 6} means rolling a 4 first, then a 6 next. \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Often it's handy to write in a table form like you see below. The table makes things more compact and readable. \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " ![]() \n" ); document.write( "Source: http://math.stackexchange.com/questions/598808/if-you-roll-a-fair-six-sided-die-twice-whats-the-probability-that-you-get-the\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "------------------------------------------------------------------------------------------------------------------------\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Now let's focus on the outcomes where the sum of the two rolls gets 9. Those outcomes are...\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "{3, 6} \n" ); document.write( "{4, 5} \n" ); document.write( "{5, 4} \n" ); document.write( "{6, 3}\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Eg: {3,6} means we rolled a 3 first and then a 6. The sum of the roll is 3+6 = 9.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Final Answer: there are 4 ways to roll a 9 \n" ); document.write( " |