the degree of peakedness of the graph of a statistical distribution, indicative of the concentration around the mean
Origin of kurtosisfrom Classical Greek kyrt?sis, 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.
From Ancient Greek κύρτωσις (kurtōsis, “bulging, convexity”), from κυρτός (kurtos, “bulging”).