Quote Originally Posted by PrismaticDaybreak View Post
snip
Percentiles are median scores. They use all of the data available.
The only exception to this statistical validity are the max and min cases, where you're only taking into account the top and bottom most score, and the 99% and 1% percentile, which are pretty much all the outliers (even though the scores come from all the datapoints available, these still matter very little).
5%~95% is statistically significant.
(answering you, but it's a general statement about how the percentiles work; the make use of all parses available)