the degree of peakedness of the graph of a statistical distribution, indicative of the concentration around the mean
Origin of kurtosis; from Classical Greek kyrtōsis, a bulging, convexity ; from kyrtos, curved: for Indo-European base see curve
A quantity indicating how sharply a probability distribution function increases and decreases around the distribution's mean.
Origin of kurtosisGreek kurtōsis, bulging, curvature, from kurtoun, to make bulge, from kurtos, convex; see sker-2 in Indo-European roots.
- excess kurtosis
From Ancient Greek κύρτωσις (kurtōsis, “bulging, convexity”), from κυρτός (kurtos, “bulging”).