For the probability of exactly 2 to 200 rolls, please see my craps probability of survival To win the shooter must throw the dice 4 times without a 7 coming up.
The probability of throwing any given total is the number of ways to throw that total divided by the For example consider the field bet in craps. Note that there are 7 totals that win and only 4 that lose which might cause someone who didn't.
How would I calculate the odds of winning in the dice game Craps? The player throws two dice, and if the sum is 7 or 11, then he wins.