In statistics, a polykay, or generalised k-statistic, (denoted k r , s {\displaystyle k_{r,s}} ) is a statistic defined as a linear combination of sample moments. == Etymology == The word polykay was coined by American mathematician John Tukey in 1956, from poly, "many" or "much", and kay, the phonetic spelling of the letter "k", as in k-statistic.
In statistics, a polykay, or generalised k-statistic, (denoted k r , s {\displaystyle k_{r,s}} ) is a statistic defined as a linear combination of sample moments. == Etymology == The word polykay was coined by American mathematician John Tukey in 1956, from poly, "many" or "much", and kay, the phonetic spelling of the letter "k", as in k-statistic.
Source: Wikipedia "Polykay" · CC BY-SA 4.0
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