The sharpness of the peak of a frequency-distribution curve.
- Skewness was not detected in these distributions, but kurtosis was in two of them.
- The kurtosis of the movement distributions was also estimated for each species.
- Data were tested for normality using normal probability plots and tests of skewness and kurtosis.
Early 20th century: from Greek kurtōsis 'a bulging', from kurtos 'bulging, convex'.
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