kur·to·sis (k r-t  s s)n. pl. kur·to·ses (-s  z ) The general form or a quantity indicative of the general form of a statistical frequency curve near the mean of the distribution. [Greek kurt sis, bulging, curvature, from kurtos, convex; see sker-2 in Indo-European roots.] |
kurtosis [kəˈtəʊsɪs]
n
(Mathematics & Measurements / Statistics) Statistics a measure of the concentration of a distribution around its mean, esp the statistic B2 = m4/m22 where m2 and m4 are respectively the second and fourth moment of the distribution around the mean. In a normal distribution B2 = 3 See also platykurtic, mesokurtic, leptokurtic Compare skewness
[from Greek: curvature, from kurtos arched]
| kurtosis (kr-tss) The general form or a quantity indicative of the general form of a statistical frequency curve near the mean of the distribution. |
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