DEFINITION of 'Platykurtosis '
A statistical measure that indicates the level of peakedness of a probability distribution. Specifically, platykurtosis describes a distribution that has a negative excess kurtosis and appears flatter than a normal distribution, which has a kurtosis value of three.
INVESTOPEDIA EXPLAINS 'Platykurtosis '
The opposite of platykurtosis is leptokurtosis, which describes a distrbution that is more peaked than a normal distribution. Also, a platykurtic distrbution has thinner tails while a leptokurtic distribution has fatter tails. Fatter tails equates to more data points at the two ends of the distribution, while a thin tail indicates there are more data points centred around the mean.
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