TriangularTwig posted...From: happyscrub1 | #026

you do know that how often a champ is played impacts how often they win, yes? it's how statistics works. with a larger sample size comes both a more accurate ratio and a smaller margin of error, and also the win rate would move towards whatever the average is. learn2math, n00b

That's only true when we're looking at a sample of a given population. But since we're already looking at the entire population; the numbers given represent the raw dataset.

If, for simplicity sake, we assume that the population consists of two people: one that only plays katarina, and another that only plays swain. Then we can safely say that both katarina and swain are picked halve the time (assuming they play solo vs bots and both of them play the same amount of games). This number would not be representative for a larger amount of people, but that doesn't matter, cause the entire population consists of only these two.

However if you take a sample of the large playerbase from league of legends, then the larger the sample, the more accurate the numbers derived will represent the original population.