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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.

5 votes
3 answers
833 views

How to reduce the variance of a dice pool mechanic?

Given a dice pool mechanic where a number of six-sided dice equal to Stat + Skill are rolled, and the number of 4s, 5s, and 6s is counted: An increase in the size of the pool increases the absolute v …
oconnor0's user avatar
  • 965
72 votes
18 answers
24k views

What dice mechanic gives a bell curve distribution that narrows and increases mean as skill ...

I'm looking for a dice mechanic that produces a bell curve at all skill levels. I also want it to increase accuracy and precision as a character's skill increases — this basically means better average …
oconnor0's user avatar
  • 965