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The difference between leptokurtic and platykurtic (2014)
- antognini 3y agoFor anyone interested, the figure at the bottom of the platypus and kangaroos is from M.G. Bulmer's book Principles of Statistics.
- parpfish 3y agoone problem with kurtosis descriptions is getting people to develop an intuition how "sharp peaks" are different from "low standard deviation"
- jakderrida 3y agoplaty = platypus = flatypus lepto = lept = leaping Although, leptos actually comes more from "leptos", which I think means thin or petite in Greek. The word "leap" is actually from German roots and "flatypus" is not a real word at all.
- baruz 3y agoPlatys (πλατὺς) is “wide” or “broad”; platypus (πλατύπους) is “wide-foot” in ancient Greek and referred to flat-footed people. “Platypus” came from their paddle feet. Leptos (λεπτός) is sort of derived from a word meaning “peeled” like the husk of threshed grain, that came to take on the meaning of delicate, subtle, or small/thin in Attic Greek usage. Kurtosis (κύρτωσις) comes from ancient Greek “a bulging.” Had it been a traditional word coming from Greek through Latin or French to English, it might have been cyrtosis, like in biology: https://en.m.wikipedia.org/wiki/Cyrtandra_(plant) https://en.m.wikipedia.org/wiki/Cyrtandra_(plant)