normal kurtosis
[NOR-mul KER-toh-sis]
noun
curtose normal
1. In statistics, the kurtosis value of a normal distribution, which equals zero when using excess kurtosis (kurtosis minus 3). It describes the degree to which a distribution's tails differ from those of a normal distribution.
The normal kurtosis of a perfectly normal distribution is zero, indicating neither heavy nor light tails.
A curtose normal de uma distribuição perfeitamente normal é zero, indicando caudas nem pesadas nem leves.
2. The reference point or baseline kurtosis value used to compare other distributions against the standard normal distribution.
Distributions with excess kurtosis greater than normal kurtosis exhibit heavier tails than a normal distribution.
Distribuições com curtose em excesso maior que a curtose normal exibem caudas mais pesadas que uma distribuição normal.
This is a technical statistical term used primarily in academic, research, and professional contexts in both Brazil and the United States. It has no colloquial usage and is specific to the field of statistics and data analysis. The term is identical in both English and Portuguese-speaking academic communities.
Related Idioms & Phrases
excess kurtosis relative to normal kurtosis
deviation from normal kurtosis
normal kurtosis as a baseline
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