Definición Kurtosis

The deviation of the course of a distribution from the course of a normal distribution is called kurtosis (curvature). It indicates the sharpness or peakedness of a curve.

A distinction is made between distributions with

- positive excess kurtosis (tapered curve): platykurtic distributions
- negative excess kurtosis (shallow curve): leptokurtic distributions

 

The kurtosis is one of the central moments of a distribution by means of which the curve is defined. A kurtosis with value 0 is mesokurtic, a kurtosis with a value greater than 0 is leptokurtic and a kurtosis with a value less than 0 is platykurtic.

Note: Often, the terms excess and kurtosis are used interchangeably, when in fact the excess refers to the kurtosis coefficient. 

Tenga en cuenta que las entradas de nuestro glosario son explicaciones simplificadas de términos estadísticos. Nuestro objetivo es hacerlo accesible para un público amplio, así que puede que algunas definiciones no cumplan los estándares científicos.

Entradas que empiezan por K
  • Kurtosis