Your return is $1,350. The decimal odds 13.5 correspond — roughly — to the chances of rolling a combination of 6 dice summing to 18.
The probability of losing is 92.5% while winning is 7.5%. The chances are about 8 to 100.
Calculate the decimal odds and multiply them by the stake to find your return r:
r = s × (Cs+Cas)/Cs = 100 × (100+8)/8 = $1,350
where:
Cs - chances of success; and
Cas - chances against success.
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