Template talk:Negative binomial distribution

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Kurtosis

Shouldn't the excess kurtosis be like this?
${\frac {6}{r}}+{\frac {p^{2}}{(1-p)r}}$
It has that form in other wikipedias and it agrees with Abramowitz and Stegun (after some calculations from page 929). Per Westerlund (LTU) (talk) 06:38, 30 March 2023 (UTC)