Polykay

In statistics, a polykay, or generalised k-statistic, (denoted [math]\displaystyle{ k_{r,s} }[/math]) is a statistic defined as a linear combination of sample moments.^[1]

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.^[2]

References

↑ "Polykay". Wolfram. http://mathworld.wolfram.com/Polykay.html.
↑ Tukey, J. W. (1956.) "Keeping Moment-Like Computations Simple", Ann. Math. Stat., 27:37–54.

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[1] "Polykay". Wolfram. http://mathworld.wolfram.com/Polykay.html.

[2] Tukey, J. W. (1956.) "Keeping Moment-Like Computations Simple", Ann. Math. Stat., 27:37–54.

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