单词 | kurtosis |
释义 | Word Frequency kurtosis(kəˈtəʊsɪs) noun statistics a measure of the concentration of a distribution around its mean, esp the statistic B2 = m4/m22 where m2 and m4 are respectively the second and fourth moment of the distribution around the mean. In a normal distribution B2 = 3 See also platykurtic, mesokurtic, leptokurtic , Compare skewness Word origin from Greek: curvature, from kurtos arched |
随便看 |
英语词典包含233703条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。