kurtosis

n. 峰态, 峭度 [计] 峭度, 峰度

发音

UK /kəˈtəʊ.sɪs/
UK /ˌkɜːˈtəʊ.sɪs/
CA /kɚˈtoʊ.sɪs/
US /kɚˈtoʊ.sɪs/
CA /ˌkɝˈtoʊ.sɪs/
US /ˌkɝˈtoʊ.sɪs/
AU /kəˈtəʉ.sɪs/
AU /kəˈtɐʉ.sɪs/
AU /ˌkɜːˈtəʉ.sɪs/
AU /ˌkɜːˈtɐʉ.sɪs/

词形变化

kurtoses 复数 kurtoses kurtosises kurtosises 复数

别名

curtosis

释义与例句

n.
  1. 1.

    A measure of "heaviness of the tails" of a probability distribution, defined as the fourth cumulant divided by the square of the variance of the probability distribution.

    峰度

    可数 不可数 数学
  2. 2.

    Excess kurtosis: the difference between a given distribution's kurtosis and the kurtosis of a normal distribution.

    可数 不可数 数学

相关短语

excess kurtosis

词源

Coined by English mathematician, biometrician, and eugenicist Karl Pearson c. 1895 (published 1899 in "On certain Properties of the Hypergeometrical Series, and so on the fitting of such series to Observation Polygons in the Theory of Chance", Phil. Mag.). From Ancient Greek κύρτωσις (kúrtōsis, “a bulging, convexity”), from κυρτός (kurtós, “bulging, convex”).

来源：wiktionary