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13 dice are rolled simultaneously. What is the probability that you will get a total of 45? Thanks for the help.

 Aug 25, 2016
 #1
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Here you go :   https://www.wolframalpha.com/input/?i=probability+of+rolling+45+with+13+dice

 

416598221 / 6530347008     is the exact probability  ≈    1  out of 16

 

 

 

cool cool cool

 Aug 25, 2016
 #2
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It would be the coefficient of the n^45 or the 34th term of the expansion of this generating series: [n+n^2+n^3+n^4+n^5+n^6]^13.Why? Because the process involved in calculating the coefficient in question is exactly the same as calculating the odds in this dice probability. Therefore the coefficient of n^45 is:833,196,442 / 6^13 =~0.06379 or ~6.38%.

P.S. It is exactly the same probability as in CPhill's answer. His has been reduced by a factor of 2.

 Aug 25, 2016

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