3 ms·
Average scores should trend towards the center. I'm not sure if it's an example of the central limit theorem (I think that deals with different distributions te
by kale 10y ago
Average scores should trend towards the center. I'm not sure if it's an example of the central limit theorem (I think that deals with different distributions tending towards normal), but you'd expect IMDB scores to trend toward the middle.
- minimaxir 10y agoCentral limit theorem assumes that events are independent and random. Which is not the case. (For one, there is a selection bias in that people would only review/vote on a product of they strongly like or strongly dislike it) The lack of trend toward the middle implies that the scale is not great. But there is no incentive to fix it.