- cross-posted to:
- tabletop
- cross-posted to:
- tabletop
After 250 rolls, 1 popped up 27 times. Or roughly 11% of the time.
I did this same test with all 17 D20’s I have and 2 D20’s from people in my DnD group.
This one was far and away the worst though I had more than I’d like with averages under 10.
Edit:
Here's the stats for the ones I tested
This excludes the data for the 2 D20’s from the people in my DnD group as they didn’t want that data shared outside of the group chat.
general_kitten ( @general_kitten@sopuli.xyz ) 11•3 months agoA set of 250 throws with average of 9.56 in a fair d20 has a probability of about 0.5% to occur, so in 17 sets there is about a 8% chance to happen if you dice were fair according to binomial distribution. This means there is a 92% chance that your die is unfair. usually a confidence of >95% is needed for science but for home i think is enough to declare a dice unfair.
This calculation only says if the die is unfair, not how much unfair.
eldain ( @eldain@feddit.nl ) 7•3 months ago250 rolls is really low for a d20 test, not enough to spread out the randomness over all surfaces. 1000 is also on the low side, but has more chance to indicate a bias.
tyler ( @tyler@programming.dev ) 4•3 months agoOof that’s horrendous. Like the average is still around the same but the consequences are so so much worse
glizzyguzzler ( @glizzyguzzler@lemmy.blahaj.zone ) 3•3 months agoThis is some hot data
neptune ( @neptune@dmv.social ) English3•3 months agoI should open an Etsy shop and sell shitty d20s and not tell anyone. April fools!