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Timeline for Percentile vs quantile vs quartile

Current License: CC BY-SA 3.0

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Nov 15, 2020 at 6:19 comment added Bernhard Barker Quartile relates to quarters, i.e. out of 4. Pencentile relates to percentages, i.e. out of 100. Quantile ... is just there to confuse you (it relates to quantity).
Feb 7, 2019 at 0:38 history protected kjetil b halvorsen
Jan 16, 2019 at 16:43 comment added Nick Cox My answer at stats.stackexchange.com/questions/235330/… has a fuller list of *ile terms, including dates of first use. Naturally additions and earlier sightings (citings!) are welcome.
Jun 13, 2015 at 20:32 answer added I Like to Code timeline score: 35
Jun 13, 2015 at 17:59 history tweeted twitter.com/#!/StackStats/status/609782127513706497
Jun 13, 2015 at 17:22 comment added Nick Cox The quantiles are defined as points. There is often ambiguity as between intervals and points for quartiles etc.; it does not bite very hard in practice, as context usually makes clear what is intended. I prefer the first quarter (rather than quartile), for the lowest 25%, etc. although it's too much to hope that the distinction will be universally self-evident without explanation.
Jun 13, 2015 at 14:20 comment added Henry A deeper question is whether quantiles etc. are intervals or points.
Jun 13, 2015 at 12:25 answer added stochazesthai timeline score: 201
Jun 13, 2015 at 12:24 answer added rnso timeline score: 24
Jun 13, 2015 at 11:28 answer added Peter Flom timeline score: 70
Jun 13, 2015 at 11:25 history asked luciano CC BY-SA 3.0