Questions tagged [statistics]
Statistics deals with the mathematics of probability-based games. This tag should be used for questions about tabletop game mathematics that relate to mechanics rather than game elements such as skills or attributes, and have relevance to RPGs in particular.
410 questions
8 votes
1 answer
371 views
How do I access elements of a sequence generated by a function in Anydice?
I feel like I'm tweaking, cause everything I'm reading in the documentation makes me think I'm doing it right. I'm trying to characterize a roll of 2d6 as a sequence that returns {R, C}, where R is ...
- 125
7 votes
1 answer
523 views
Anydice: Help calculating survival probability with D&D 5e Death Saves
I've been trying to put together an AnyDice script that calculates the chances of surviving or dying when making Death Saves under the D&D 5e Rules: A Death Saving Throw is a Saving Throw with DC ...
- 1,357
2 votes
3 answers
819 views
Need to graph probability distribution for 2d20 +/- 1d6. Adding the d6 if over 10.5, subtracting d6 if under 10.5
I'm making a crit chart. But I do not want a bell curve distribution like 3d6, nor a flat one like percentile dice. I'm entertaining the thought of a bimodal (just learned that term looking for a ...
- 29
3 votes
1 answer
187 views
Probabilities that dice roll contains sets/sequences
How do I make Anydice output the probabilities for 3d6, 4d6, and 5d6 to contain the following: Any 1 pair Any 2 separate pairs (could be 4 of a kind) Any 1 triple Any 1 triple, and any 1 separate ...
- 33
8 votes
1 answer
994 views
What would an anydice function to calculate odds on Daggerheart's duality dice look like?
Daggerheart uses Duality Dice. This is usually 2d12 (dice can be changed, so a proper formula will allow for setting die sizes) with one die named Hope and the other named Fear. The higher die is its ...
- 148
5 votes
1 answer
137 views
How do you model the exploding, rerollable dice for a call-on trait in Icepool?
During our most recent Trait Vote, the group awarded my character Pennywise (huzzah!). I thankfully didn't need to leverage it for the subsequent Resource Maintenance check; however, I definitely took ...
- 7,337
9 votes
1 answer
2k views
At what dice pool size does open-ending a roll become mathematically better than adding another die?
It seems like it'd be some kind of recursive 1/6th thing regarding explosives, so slightly less than 5 pool size seems intuitive, but I don't know how the math of infinities works into the equation. (...
- 7,337
-1 votes
1 answer
220 views
If a fighter is making multiple attacks with advantage, then what are the odds of at least one attack resulting in two 1s?
For a single attack with advantage, I know what the odds are of both rolls being a 1. When it comes to multiple attacks per round I am unclear. At level 20 a fighter gets 4 attacks, or 8 with Action ...
- 1,250
4 votes
1 answer
324 views
How is maximum age handled in templated creatures?
Templates modify a base creature and refer to its statistics. If the base creature is from a playable race, it also does have a maximum life span. Is the maximum age part of the creature's statistics? ...
- 168k
7 votes
3 answers
961 views
Roll and sum XdY, adding +1 to the total for each die result lower than the highest?
I'm curious about this dice mechanic and am interested in visualizing the value ranges and their associated probabilities, but I'm having difficulty wrapping my head around how exactly to input it ...
- 930
3 votes
3 answers
665 views
Help with AnyDice calculation for 3d6, reroll the third 1 or the 3rd 6 in any score
I asked a question just last night and got a lot of wonderful help, but unfortunately I think I've created a monster of myself because I'm not going down a rabbit hole of 5e ability score generation ...
- 193
5 votes
1 answer
697 views
Help with a complicated AnyDice ability score calculation
I'm working on an ability score generation mechanic inspired by 13th Age, where you roll dice and assign a letter to each result, then determine scores by pairing the results, adding a static modifier,...
- 193
6 votes
1 answer
264 views
AnyDice - How can I calculate the average expected scores when taking the best of two rolled stat arrays?
I saw this article and in it, there is code for the six expected ability scores you'll get on average if you do d&d's classic 4d6 drop lowest method 6 times to generate 6 ability scores: ...
- 63
12 votes
2 answers
1k views
How can I calculate the break even point for Chromatic Orb versus Fireball?
My sorcerer just hit 5th level, so he needs to consider whether he's going to take Fireball, however, he really likes his Chromatic Orb and branding is important. So I started thinking about if there ...
- 40.5k
2 votes
1 answer
143 views
Chance of success/Number of Points Scored in an inverted BitD-esque dice pool
I'm working on a GM-less game that encourages you to make things difficult for your own characters, to that end I've developed an "inverted" BitD-style dice pool where more dice=more chance ...
- 127