kurtosis

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Related to Mesokurtic: kurtosis, platykurtic

kurtosis

[kər′tō·səs]
(statistics)
The extent to which a frequency distribution is concentrated about the mean or peaked; it is sometimes defined as the ratio of the fourth moment of the distribution to the square of the second moment.

kurtosis

see MEASURES OF DISPERSION.
References in periodicals archive ?
Kurtosis Bedouin Village BV1 Very Leptokurtic BV3 Very Leptokurtic BV4 Very Leptokurtic BV5/1 Mesokurtic BV5/2 Leptokurtic BV5/3 Very Leptokurtic Al Zahraa Town ZTI Mesokurtic ZT2 Leptokurtic ZT5 Very Leptokurtic ZT6 Mesokurtic North Asdaa Town NST2 Very Leptokurtic NST3 Very Leptokurtic NST5 Very Leptokurtic NST6 Very Leptokurtic NST8 Very Leptokurtic South Asdaa Town SST1 Very Leptokurtic SST4 Mesokurtic SST9/1 Leptokurtic SST9/2 Leptokurtic SST10 Very Leptokurtic Khan Younis AM1 Leptokurtic KHP1 Leptokurtic KHP2 Mesokurtic P1 Leptokurtic Rafah Road RR1 Mesokurtic RR3 Leptokurtic RR4 Mesokurtic RR5 Very Leptokurtic RB1 Leptokurtic Rafah Border RB2 Mesokurtic M = mean grain size; [?
The kurtosis values of the studied sediments indicated that these sediments are composed of Platykurtic, Mesokurtic and Leptokurtic groups of sediments.
Therefore, the three-factor solution was that which produced a normal distribution of residuals, having a lower bias and whose distribution was approximately mesokurtic.
If it is zero or near zero it is mesokurtic (possibly normal) and if the kurtosis index is positive, the distribution is leptokurtic.
Positive excess kurtosis means that distribution has fatter tails than a normal distribution and indicates a leptokurtic distribution, whereas the distribution is, respectively, platykurtic for negative excess kurtosis and mesokurtic when kurtosis is equal to 3.
While the distribution of trading volume is mesokurtic, it is leptokurtic in case of all other variables.