| 释义 |
skewness
skew S0447400 (skyo͞o)v. skewed, skew·ing, skews v.tr.1. To turn or place at an angle: skew the cutting edge of a plane.2. To give a bias to; distort: The use of a limited sample skewed the findings of the study.v.intr.1. To take an oblique course or direction.2. To look obliquely or sideways.3. To display a statistical tendency toward: a television program that skews toward teenagers.adj.1. Placed or turned to one side; asymmetric.2. Distorted or biased in meaning or effect.3. Having a part that diverges, as in gearing.4. a. Mathematics Neither parallel nor intersecting. Used of straight lines in space.b. Statistics Not symmetrical about the mean. Used of distributions.n. An oblique or slanting movement, position, or direction.
[Middle English skewen, to escape, run sideways, from Old North French eskiuer, of Germanic origin.]
skew′ness n.skewness (ˈskjuːnɪs) n1. the quality or condition of being skew2. (Statistics) statistics a measure of the symmetry of a distribution around its mean, esp the statistic B1 = m3/(m2)3/2, where m2 and m3 are respectively the second and third moments of the distribution around the mean. In a normal distribution, B1 = 0. See kurtosisskew•ness (ˈskyu nɪs)
n. Statistics. 1. asymmetry in a frequency distribution. 2. a measure of such asymmetry. [1890–95] Thesaurus| Noun | 1. | skewness - an oblique or slanting asymmetrylopsidednessasymmetry, dissymmetry, imbalance - (mathematics) a lack of symmetry |
skewness
skewness[′skyü·nəs] (statistics) The degree to which a distribution departs from symmetry about its mean value. MedicalSeeskewSkewness
SkewnessNegative skewness means there is a substantial probability of a big negative return. Positive skewness means that there is a greater-than-normal probability of a big positive return.skewness
Related to skewness: standard deviation, kurtosisSynonyms for skewnessnoun an oblique or slanting asymmetrySynonymsRelated Words- asymmetry
- dissymmetry
- imbalance
|