document.write( "Question 448418: I am having trouble determining an effective way of calculating probability of certain scores given a variable scoring system\r
\n" ); document.write( "\n" ); document.write( "Say you roll 6 standard dice that has a scoring system of the following for whichever numbers you roll:\r
\n" ); document.write( "\n" ); document.write( "roll a 1 - 1 point each\r
\n" ); document.write( "\n" ); document.write( "roll a 2 - 2 points each\r
\n" ); document.write( "\n" ); document.write( "roll a 3 - 3 points each IFF there are no 4s present, otherwise zero
\n" ); document.write( "roll a 4 - 4 points each IFF there are no 3s present, otherwise zero\r
\n" ); document.write( "\n" ); document.write( "ex: rolling four 3s, one 2, and one 4 will give you a total of 2. Since there were both 3s and 4s, you cannot earn points for them. Therefore you only earned points for the 2.\r
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\n" ); document.write( "\n" ); document.write( "roll a 5 - value increases per number of 5s rolled
\n" ); document.write( "ex:
\n" ); document.write( "roll one 5 - 1 point
\n" ); document.write( "roll two 5s - 2 points each
\n" ); document.write( "roll three 5s - 3 points each, and so on...\r
\n" ); document.write( "\n" ); document.write( "roll a 6 - negative 2 points each\r
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\n" ); document.write( "\n" ); document.write( "I decided to ask the question: What is the probability of rolling all 6 dice and getting a negative score?\r
\n" ); document.write( "\n" ); document.write( "Although a full solution would be terrific, I am simply looking for some insight as to how you can incorporate a scoring system into some sort of equation.\r
\n" ); document.write( "\n" ); document.write( "If anything is unclear please post a reply.\r
\n" ); document.write( "\n" ); document.write( "Thanks in advance!
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Algebra.Com's Answer #308546 by edjones(8007)\"\" \"About 
You can put this solution on YOUR website!
The best way to do this is to write a program to cover the 6^6=46,656 different probabilities and track the scores. This would give an exact answer in less than a minute. It would take less than a day to write and debug if you are a pretty good amateur programmer.
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