All Questions
Tagged with statistics skills
6 questions
1
vote
4
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930
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What percentage of Call of Cthulhu characters start drowning on average?
In Call of Cthulhu 7e, it is possible to call for a swimming check that can result in drowning. Assume that 80% of characters have a 20 in swim, and 20% of characters have a 60 in swim. Assume that ...
user71562
21
votes
4
answers
4k
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How can I implement a "passive stealth" that is mathematically equivalent to rolling stealth vs. passive perception?
I think the metagaming problem with rolling for stealth is fairly well-known: once the player rolls for stealth at the start of their sneaking, they know how high they rolled and might, consciously or ...
- 64.2k
15
votes
5
answers
3k
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When performing a group check, is it better to have an even number of creatures?
The rules for group checks say:
To make a group ability check, everyone in the group makes the ability check. If at least half the group succeeds, the whole group succeeds.
So, for groups of 1 and 2,...
- 216k
15
votes
2
answers
4k
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Using 3d6 versus d20 for skill checks vis-à-vis advantage and Lucky
As a follow on to this question, now that people have gotten into the weeds and into the math on D&D's 5th edition, I am interested in seeing the impact on skill checks (only) of using 3d6 rather ...
- 144k
16
votes
2
answers
3k
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How can I figure the number of trials until success?
I have a player who I want to let make many attempts at the same skill check. (I'm aware that's not always the best way to do it, but it makes sense in some cases.) But rather than rolling many times ...
- 102k
3
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0
answers
329
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How do you determine probability of group ability checks? [closed]
In Dungeons and Dragons fifth edition, group ability checks are done with everyone in the group making the ability check. If at least half the group succeeds, the whole group succeeds. Otherwise, the ...
