I feel like there's a specific name for this but I can't for the life of me find it in a search term, and that I also previously knew how to do this back in highschool, but I can't remember anymore. Basically I'm looking to figure out how to find out which probability is a better bet, given 2 or more sets of probability. A calculator would be great since I'd need to do the somewhat frequently (unless it's actually really simple and I'm just being dumb). In case what I'm looking for doesn't make sense, an example issue could be something like ten 5% attempts vs three 20% attempts, which would more likely result in at least one success.