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单词 variance
释义

variance /ˈveəriəns//ˈveriəns/

英汉-汉英词典
  1. n. 差异,不同;不一致;不相符合
  2. 变化;变动;变异
  3. 不和;有分歧
  4. <数>方差
  5. ( 与… )有矛盾,不一致
词组 | 习惯用语
variance analysis 方差分析;差异分析
analysis of variance 方差分析
at variance 不和;有分歧
at variance with 与…不和
total variance 总方差,总变异数
cost variance 成本差异
error variance 误差方差;误差变量;误差偏差
variance ratio 方差比,变异比;变异刺激
residual variance [数]剩余方差
additive variance 加性方差
英语例句库
  1. The good in him was a constant variance with the bad.
    他善良的一面经常和邪恶的一面发生矛盾
  2. Objective To investigate the variance and value of Hypophosphatemia in the diagnosis of septic patients.
    目的探讨血磷在脓毒症发病过程中的变化及其诊断价值。
  3. These conclusions are totally at variance with the evidence.
    这些结论与证据完全相悖
  4. The question of woman suffrage sets them at variance.
    妇女参政的问题使他们发生争执
  5. Finally, variance analysis is used to verify the validity of the crytic model.
    最后,利用方差分析周期检验方法作了印证性讨论。
  6. This paper proposed an algorithm for finding critical value of normal population variance under unbiassed tests with uniform dominance.
    本文给出了求正态总体方差的一致最优化无偏检验的临界值的算法。
  7. Unbiasedness and efficiency for estimating variance components and predicting genetic effects are tested by Mone Carlo simulations.
    运用蒙特卡罗模拟的方法,验证了遗传模型的稳定性和统计分析方法的无偏性。
  8. As long as your interests and mine were at variance I could give you no counsel on this subject.
    只要你我的利益有冲突, 我就不能在这个问题上向你提出任何忠告。
  9. Beamforming algorithm in the minimum variance distortionless response beamformer and give a diagram of conventional beamforming and MVDR two waveforms.
    波束形成算法中的最小方差无失真响应波束形成器,并在一个图中给出常规波束和MVDR两种波形。
  10. Results The total variance rate of cystic duct was 78.6% of which length was 41.7%,postition was 35.7%,direction was 52.4%,collateral or circumambient with common hepatic duct was 47.6%.
    6%。其中胆囊管长度变异占41。7%,汇入位置变异占35。7%,汇入方向变异占52。4%,与肝总管并、绕行占47。
  11. Those enterprises keep books at planned cost or norm cost in daily accounting shall account for the coit variances and adjust planned cost (or norm cost) into historical cost periodically.
    采用计划成本或者定额成本法进行日常核算的,应当按期结转其成本差异,将计划成本或定额成本调整为实际成本。
  12. By comparing the trading volume, price, variance of return and beta of the underlying stocks before and after the warrants issue, the research analyzes the microeffect of the warrants issue event.
    本文分别从权证发行前后标的股票的价格、成交量、收益率方差以及贝塔值的变化情况,分析了权证发行的微观效应。

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原声例句
CNN 听力 2023年9月合集

First up, taxes. There's local, state and federal, and there's a wide variance in state taxes.

首先是税收。有地方税、州税和联邦税,各州的税收差别很大。

Asap SCIENCE 精选

Interestingly, studies show more male variance in tests with their scores being both the worst and the best.

有趣的是,研究显示男性结果的变化幅度较大,他们的成绩主要分布于曲线的两端。

BBC 听力 2021年3月合集

A surge in cases driven by new variance has pushed health systems to their limits.

由于新的病毒变种导致的病例正在激增,这已将巴西的卫生系统推向极限。

哈佛大学《幸福课》

The second thing that matters that makes up the hundred percent of variance of happiness, external circumstances.

第二个对快乐差异指数有影响的因素是外部环境。

TED演讲(音频版) 2016年6月合集

But there's variance within this group and it's not efficient to go after all of them, right?

但这个群体的人有很多种类型要全面的跟踪他们不是很有效率 对吧?

大神带你过雅思写作

And variance, have you repeated some words?

还有方差,你有没有重复一些话?

TED演讲(视频版) 2017年2月合集

We needed a lot of variances to do that.

我们需要很多差异来做到这一点。

可汗学院:统计学(视频版)

What is the variance of this population right over here?

这里人口的方差是多少?

SciShow 合集

The variance between all of the sets was only 1.6 percent.

所有集合之间的差异仅为 1. 6%。

流行文化

Dunkirk earned a lower tomatometer because there was less agreement among critics — more variance in the data.

敦刻尔克的番茄计得分较低,因为评论家之间的一致性较低——数据差异较大。

中文百科

方差

方差Variance),应用数学里的专有名词。在概率论和统计学中,一个随机变量的方差描述的是它的离散程度,也就是该变量离其期望值的距离。一个实随机变量的方差也称为它的二阶矩或二阶中心动差,恰巧也是它的二阶累积量。方差的算术平方根称为该随机变量的标准差

英语百科

Variance 方差

Distribution and cumulative distribution of s2/σ2, for various values of ν = n − 1, when the yi are independent normally distributed.
Geometric visualisation of the variance of an arbitrary distribution (2, 4, 4, 4, 5, 5, 7, 9):
1. A frequency distribution is constructed.
2. The centroid of the distribution gives its mean.
3. A square with sides equal to the difference of each value from the mean is formed for each value.
4. Arranging the squares into a rectangle with one side equal to the number of values, n, results in the other side being the distribution's variance, σ².

In probability theory and statistics, variance is the expectation of the squared deviation of a random variable from its mean, and it informally measures how far a set of (random) numbers are spread out from their mean. The variance has a central role in statistics. It is used in descriptive statistics, Statistical inference, hypothesis testing, goodness of fit, Monte Carlo sampling, amongst many others. This makes it a central quantity in numerous fields such as Physics, Biology, Chemistry, Economics, and Finance. The variance is the square of the standard deviation, the second central moment of a distribution, and the covariance of the random variable with itself, and it is often represented by σ² or Var(X).

近义、反义、联想词
近义词
n.
deviation, divergence, departure, difference, discord, dissension, moment

联想词
variability变化性;deviation背离,偏离;variation变种;correlation相互的关系;heterogeneity异质性;discrepancy差异, 不符合;fluctuation波动,涨落,起伏;divergence分叉,叉开;probability可能性;coefficient系数;disparity不一致;
英英词典
variance n.
  1. an event that departs from expectations

  2. synonymous: discrepancy, variant
  3. discord that splits a group

  4. synonymous: division
  5. the second moment around the mean; the expected value of the square of the deviations of a random variable from its mean value
  6. a difference between conflicting facts or claims or opinions

  7. synonymous: discrepancy, disagreement, divergence
  8. the quality of being subject to variation

  9. synonymous: variability, variableness
  10. an official dispensation to act contrary to a rule or regulation (typically a building regulation)
    • a zoning variance
  11. an activity that varies from a norm or standard

  12. synonymous: variation
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更新时间:2025/6/17 18:06:07