Smaller entities are more likely to have outlier results.
- Smaller entities are more likely to have outlier results.
- Due to the law of large numbers, random noise is more and more likely to average to zero as you get more items.
- It's possible to have a few random measurements that happen to align, but as the count gets higher it gets astronomically less likely.
- Outliers can be good or bad.
- But when comparing them to larger entities remember that it might be an illusion.
- A lot of "this one small town is the best place on earth to live" style results are more about that random noise than about a real phenomenon.