[gurps] declining probability

[Max, Dunedin, NZ]

Captain Joy wrote:
> Here is what I came up with:
> 
>     Avg # or rolls to till you hit 0 given a starting no. to beat
> 3    3.0046511628
> 4    4.0235190873
> 5    5.0720627766
> 6    6.174103593
> 7    7.3674737587
> 8    8.7174737587
> 9    10.317473759
> 10    12.317473759
> 11    14.984140425
> 12    18.841283283
> 13    25.012711854
> 14    35.812711854
> 15    57.412711854
> 16    111.41271185
> 17    327.41271185
> 18    infinite
> 



Thanks heaps for that.

Just one note, it won't make to much difference to the results, but as 
this is GURPS, the statistics are slightly different, ie a 17 & a 18 are 
always a failure, which means 18 won't be infinite. But once again for 
the range I'm looking for its correct.


Thanks heaps :)