A quantity indicating how sharply a probability distribution function increases and decreases around the distribution's mean.
The degree of peakedness of the graph of a statistical distribution, indicative of the concentration around the mean.
The general form or a quantity indicative of the general form of a statistical frequency curve near the mean of the distribution.
Other Word Forms
Origin of kurtosis
- Greek kurtōsis bulging, curvature from kurtoun to make bulge from kurtos convex sker-2 in Indo-European roots
From American Heritage Dictionary of the English Language, 5th Edition
- From Ancient Greek κύρτωσις (kurtōsis, “bulging, convexity”), from κυρτός (kurtos, “bulging”).