PROBLEM: You are a web programmer. You have users. Your users rate stuff on your site. You want to put the highest-rated stuff at the top and lowest-rated at the bottom. You need some sort of “score” to sort by.
https://www.evanmiller.org/how-not-to-sort-by-average-rating.html
https://www.evanmiller.org/how-not-to-sort-by-average-rating.html