This section of the course develops the mathematical concepts used in statistics. Three ideas are essential: Random Variable, Density Functions, and Expectations.
此部分课程扩展了统计学中的基本数学概念。三个基本想法如下：随机变数，密度函数与期望。
The math model is used to image the essential relation of every variable in the process, maybe the model is algebra equation, or differential equation, or geometry curve.
数学模型用来反映过程本身各有关变量之间本质关系，它可能是代数方程、微分方程或几何曲线。
This paper discussed a few research method about physical chemistry, such as scientific abstract, ideal mode, essential show, limit inference, relative number, variable control and so on.
本文讨论了物理化学中的几种研究方法，如科学抽象法、理想模型法、本质揭示法、极限外推法、相对数值法和控制变量法等。
The temperature rise and pressure losses along the ducts in variable air volume air conditioning system is essential to optimal energy-saving control.
变风量空调系统优化节能控制的一个要素是空调系统的风道分布参数的变化规律。
The linchpin of multi-dimension analysis is to build multi-dimension data cube, essential of which is a multi-dimension array, and is the combination express of dimension and variable.
多维数据分析的关键是生成多维数据立方体，立方体实质上就是一个多维数组，是维和变量的组合表示。
The research focused on the essential factors of employee's justice perceptions and job satisfaction, analysed the relationship between them, then verified the buffer role of demography variable.
本研究对员工公平感、工作满意度的要素构成及两者之间的关系进行了分析，并验证人口学变量在它们之间的缓冲作用。
Then via the analysis of a special state variable weight vector, an essential relation between state variable weight vector and balance function is interpreted further.
通过分析一类特殊的状态变权向量，进一步揭示了状态变权向量与均衡函数之间的内在联系。
Then via the analysis of a special state variable weight vector, an essential relation between state variable weight vector and balance function is interpreted further.
通过分析一类特殊的状态变权向量，进一步揭示了状态变权向量与均衡函数之间的内在联系。
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