Overall Percentage chance to stabilize? [Archive] - Wizards Community

Post/Author/DateTimePost
Karui_Kage

07-14-07, 05:59 AM
I've been wondering about this recently, and I can't remember the math necessary to calculate this.

Obviously, a character at -9 HP has a 10% chance to stabilize, or die. A character at -6 has a 10% chance to stabilize as well, but he has 4 rounds to attempt it, and a higher chance of success.

What is the overall percent chance to stabilize if a character, say, begins at -1? -4? How is this calculated again? I know there must be a thread on it somewhere, but I didn't see one on a search.
Nom

07-15-07, 12:36 AM
Chance to not stabilise is 0.9^(number of rounds 'til death). Thus, -9 round is 0.9, -8 is 0.81, -7 is 0.729, and so on. Subtract this value from 1 to find chance to stabilise. Multiply by 100% to turn it into a percentage.
tricky_bob

07-15-07, 04:54 AM
We use CON scores to determine when a PC will die (14 CON means die at -14) and the CON score determines the %age to stabilize (14%).
Karui_Kage

07-15-07, 04:08 PM
Chance to not stabilise is 0.9^(number of rounds 'til death). Thus, -9 round is 0.9, -8 is 0.81, -7 is 0.729, and so on. Subtract this value from 1 to find chance to stabilise. Multiply by 100% to turn it into a percentage.

Thanks! That's just what I was looking for.
Sildatorak

07-17-07, 04:52 PM
Can you tell I'm procrastinating?

-9=10% chance to stabilize
-8=19%
-7=27%
-6=34%
-5=41%
-4=47%
-3=52%
-2=57%
-1=61%
0=infinity billion%