查询词典 variance

In statistical language, this estimate is called the between-column variance.

在统计学中这个估计值叫组间方差。

This course includes descriptive statistics, probability distribution, sampling distribution, statistical estimation, hypothesis testing, analysis of variance, chi-square tests, simple linear regression, multiple regression, and nonparametric statistics.

本课程内容包括叙述统计、机率分配、抽样分配、统计估计、统计假设检定、变异数分析、卡方检定、简单线性廻归、复廻归、无母数统计。

The contents include:(1) Descriptive statistics;(2) Probability and probability distributions;(3) Statistical inference - estimation and hypothesis testing;(4) Nonparametric methods;(5) Analysis of variance;(6) Regression analysis.

讲授内容包括：叙述统计；机率、机率分配─统计推论的基础；推论统计─估计和检定；无母数分析；变异数分析；回归分析。

The course covers the following topics: overview of quantitative research designs including survey research, experimental and quasi-experimental research, and correlational research; measuring of reliability and validity; sampling, hypothesis testing and statistical significance, correlational analysis, tests of mean differences, tests of frequencies, analysis of variance, linear regression, and multiple regression.

课程主要容包括问卷调查法，实验研究法，相关研究法，抽样方法，测验信度与效度，X2考验，相关分析，t考验，变异数分析，单回归，多元回归。

This paper puts forward a univariate AR(1) model that relates stock price,stock returns and dividends to study stock returns autocorrelation function, and adoptsa variance decomposition to analyze variation between expected steek returns and unexpeetedstock returns.

提出一种联系股票价格、股票收益及股息的单变量回归模型来研究股票收益的自校正，并采用变量分解法探讨股票预期收益与非预期收益两者之间的变动关系。

These data were analyzed with analysis of variance and stepwise regression.

单因素方差分析结果表明，接触组的收缩压低于对照组(P 0 1)，而舒张压均高于对照组(P 0 5 )，多元逐步回归的结果显示接触苯的浓度是导致血压升高的主要影响因素之一。

The model this paper deals with is a flow line of two machines. By means of structured stochastic matrix theory and theory of Markov process, an effective algorithm obtaining the variance of end products in a given period is proposed.

讨 论的模型为两级的串行生产线，利用结构随机矩阵理论和马氏过程的协方差结构，给出了在一个给定时间区间内系统生产成品数方差的有效算法。

It is indicated that MRV and street viruses have close phylogenic relation by analyzing the phylogenic tree of eachgene of MRV, and it is short evolutionary time between MRV and DRV by analyzingthe phylogenic tree of L gene. It is illuminated that MRV and street virus in China andAfrica have close phylogenic relation by analyzing phylogenic trees of other genes.Therefore, we can speculate that MRV is a Chinese street rabies virus isolated, whichis a new virus isolated because of variance and evolution of the rabies virus after itinfected mouse.

MRV的各个基因进化树表明，其与野毒株具有较近的亲缘关系，通过L基因的进化树分析，两个毒株的进化时间较短，其他基因进化树分析表明，MRV与亚洲和中国流行的野毒株具有较近的亲缘关系，所以推测MRV应该是中国固有的野毒株，由于某种原因感染野鼠后病毒进化变异而产生的毒株。

This paper examines whether or not stock return responds asymmetrically to monetary policy shocks. We use over-night rate volatility to measure monetary policy and apply Component-GARCH-Constant Jump and ARJI-Trend model to capture expected and unexpected effects of government's monetary policy on the stock return in American, Canada, Japan, and Britain. Considering the non-normality features of these assets returns, this paper use skewed student t distribution to estimate the relationship between the permanent and transitory components of the conditional variance and the frequency and intensity of jump of stock return.

本文探讨货币政策对於股市报酬之影响，选取货币政策代理变数－金融业隔夜拆款利率在分别采用Component-GARCH-Constant Jump与ARJI-Trend模型，并同时考量报酬率呈现非常态之特性，因此采用偏态t分配(skewed student t-distribution)进行估计条件变异数的恒常与移转部份及跳跃机率与跳跃频率，以捕捉政府实施预期及非预期的货币政策对股市报酬的影响，分析在预期及非预期的货币政策冲击下对股市的影响是否存在不同之效果。

And according to Krashen's (1980) Input Hypothesis, different learners at different levels should be given different suitable input. So the present thesis studies what kind of listening input is comprehensible for the intermediate college students and hypothesizes that the memory for random digits is subcomponent of primary memory, and that the memory for random words and for phrases are the subcomponents of speech-processing memory; these components rank in order of phrases contributing the most to an explanation of the variance in listening scores, random words the second and the random digits the least.

因此本论文旨在研究什么样的听力输入适合中级水平中国大学英语学习者，并且假设对随机数字的记忆是基础记忆的成分；而对单词的记忆和对词组的记忆是语言处理记忆的组成部分，并且以上各成分对听力理解的影响依次是对词组的记忆影响最大，对单词的记忆位于第二位，对数字的记忆位于最后。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。