I've thought that something like this should exist for a while now.

https://www.paradigm.xyz/2024/12/distribution-markets

Not the same as numerical markets. At minimum, requires traders to be able to purchase on at least 3 parameters. Possible examples include skew normal distributions, or multiple distinct numerical ranges (eg. 0%-1% and 99%-100%)

• Update 2024-11-12 (PST): The market requires that traders can create distributions in a single purchase, rather than by manually purchasing multiple ranges separately. (AI summary of creator comment)