I used a similar software for quite a while: https://www.getguesstimate.com/ https://www.getguesstimate.com/ It's a spreadsheet where each cell is a probabilit

I used a similar software for quite a while: https://www.getguesstimate.com/ https://www.getguesstimate.com/ It's a spreadsheet where each cell is a probability distribution, quite well done and easy to use. Note: I'm not related to this service in any ways.