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Mon 13 Jan, 2020 06:00 am
I'm looking at data that gives, 85th, 90th, 50th, 15th and 10th scores. Are these centiles significant, or did they pluck them out of the air?
@TerryH,
Those don't seem particularly significant. Sometimes you see 67%, 95% and 99% because they are roughly the one, two and three sigma points, but 85% and 90% don't have any particular meaning I know of.