回归模型中的预测问题

概率统计在社会的各个领域都有着广泛的应用,尤其是回归模型。对回归模型的预测与控制问题进行了研究。首先介绍了回归模型以及回归模型的预测与控制方法,然后分析了回归模型预测的步骤,最后以企业实例为基础,分别对一元回归模型的预测、二元回归模型的预测进行了分析。     

中职数学中的一元线性回归教学技巧探讨

回归分析在中职数学中属于难度较大的内容,理解回归分析的思想、回归方程与函数的联系与区别、回归与相关的联系与区别、回归方程的估计与解释等问题,是进一步学习统计学等相关课程的必备基础。本文对一元线性回归的教学内容、形式、技巧作探讨。使用案例教学、启发式教学、实践教学等教学方法,使得中职学生能够深入理解回归分析并学以致用。     

Excel在一元线性回归预测分析中的应用

预测是企业决策的前提与基础,Excel是一个具有强大功能的数据管理与分析软件。我们可以运用Excel进行回归分析预测,以提高工作效率。通过案例分析,运用Excel函数与数据分析工具两种方法建立一元线性回归预测分析模型,并进行回归分析的预测。     

基于回归生活的初中体育教学研究

本文针对基于回归生活的初中体育教学进行研究。首先,简单分析回归生活与回归生活教学的基本概念,回归生活教学的理论基础。其次,分析初中体育教学现状,得出结论:教育教学活动与生活相脱离;教学教学活动不能均衡个体生活经验与社会经验;教学教学活动不能均衡直接经验与间接经验。最后提出基于回归生活的初中体育教学策略,即基于回归生活的初中体育教学需坚持六大原则,需创设具有生活性质的教学情境,需开发生活中的基本教学资源,需形成涵盖回归生活的教学模型,需具有涵盖回归生活的教学评价。     

SAS变换回归与二次回归通用旋转组合设计

阐述变换回归分析的基本原理,并应用SAS对回归旋转正交设计试验数据作统计分析。比较表明,SAS变换回归分析的结果与普通二次回归通用旋转设计的统计分析结果非常吻合,但是变换回归更加灵活直观,在未知非线性函数的信息场合,它是探索变量间非线性关系的锐器。     

关于应用回归分析监控教学质量与预测高考的思考

应用回归分析监控教学质量和预测高考成绩时,需要考虑回归分析的各个环节是否符合统计方法的条件和要求。本文通过对应用回归分析监控教学质量与预测高考的思考,认为考试分数的回归预测应当注意分数的可比性,预测前应当对回归方程进行评价,预测后应当衡量预测误差的大小,同时应当区别解释绝对评价和相对评价。     

道路条件与交通安全关系研究

本文在阐述分析了事故率系数法、多元线性回归法、泊松分布回归法等的优缺点的基础上 ,提出用负二项式回归法 ,同时利用该法对石太高速公路上的道路线形条件与交通安全进行了回归分析     

线性回归的经济应用——分析影响消费的因素

回归分析是以概率论与数理统计为基础探求变量之间关系的一门学科。随着我国社会主义现代化建设的发展,回归分析在社会经济各部门得到了广泛的应用。人们也越来越认识到应用定量分析技巧研究问题的重要意义。运用数学的方法对回归分析的多元线性回归的经济应用进行了系统的分析和说明,并结合广州的消费情况进行了实际应用的分析。     

公路建设与农村发展指标相关性分析

介绍公路建设与农村发展问题的相关性,从统计方法来讲,利用相关分析和一元线性回归分析,重点利用一元线性回归模型,建立农村发展问题各个指标与变量公路建设（路网密度）的一元线性回归模型,描述和预测公路建设对解决农村发展问题的作用。     

重构图像，巧析太阳直射点的回归运动

太阳直射点的回归运动内容抽象,是高中地理教学中的重点和难点。如何让学生准确地理解和掌握太阳直射点回归运动的原因与规律,关键在于分析黄赤交角与太阳直射点的回归运动之间的因果关     

Western and Eastern culture differences in commercial field

The communication of people partially is the communication of cultures. Culture has a direct effect on international commercial activities in all aspects. Different conceptions about time, space, equality, law and the like, lead people to deal with things in different ways. So to know cultures of the counterpart is to facil-itate our enterprises so as to have a smooth and successful communication in commercial activity.     

风的曲线

Rosco and I wait for the fishermen to return.I sit at a wooden bench near the store at Mt.Baker Resort and watch the clouds change shape. Rosco has my belt around his neck and an eight foot tow chain hooked to a tree. Dogs must be on a leash. Ducks and rabbits are loose.     

团图为数的图中的闭团贯数

Given a graph G,a subgraph C is called a clique of G if C is a complete subgraph of G maximal under inclusion and |C|≥2. A clique-transversal set S of G is a set of vertices of G such that S meets all cliques of G. The clique-transversal number, denoted as TC (G), is the minimum cardinality of a clique-transversal set in G. The clique-graph of G, denoted as K (G), is the graph obtained by taking the cliques of G as vertices, and two vertices are adjacent if and only if the corresponding cliques in G have nonempty intersection. Let F be a class of graphs G such that F={G|K(G) is a tree}. In this paper the graphs in F having independent clique-transversal sets are shown and thus TC (G)/|G|≤1/2 for all G ∈ F.     

卡思卡特城堡

It is worthy of noting that, whilst Crookston Castle witnessed the earlier and happier portion of Mary's variegated life,     

Social and Cultural Influence on Word Meaning

Different nations have different social cultures, and the social culture of every nation is developing with the development of the nation, language is greatly influenced by social culture, which enables language to possess national and historical characteristics. Word is the smallest, independent, meaningful linguistic unit of language. It can well reflect the national and historical characteristics. From synchronic aspect, the social and cultural influence on word meaning is mainly embodied in conceptual and associative meanings of word. The incorrespondence of word meaning is a phenomenon that exists in both conceptual and associative meanings of word among different languages. From diachronic aspect, the development of social culture causes some changes of word meaning to some extent. Therefore, social culture plays a key role in vocabulary learning and mastery of a language.     

汉字倒说

汉字的六书,《说文》对“转注”一类,语焉不详。后世学者提及转注,也仅限于许慎所举出的例字。《汉字例说》一文,作者从转注的角度综合考虑,对部分现代常用字作了分析,跟传统的解释有所不同。希望能抛砖引玉,互相切磋,以推进学术研究。     

只要努力,不要后悔

There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love.     

浅谈移民问题

Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject.     

Where the Action Is: How Drama Contributes to the Art of the Teaching and Learning of English

This paper looks at the way drama works to bring a model of an arts curriculum into reality. He also shows how drama is valuable when discussed as a separate, autonomous subject in the school curriculum as opposed to one subsumed within English. He argues for a view of the arts and gives an example of a sequence of work in an English GCSE class based around Arthur Miller's play View from the Bridge. From this he draws out several strands about the relationship of the drama curriculum to the individual students and teachers, the school, and to culture. He also emphasises the primacy of performance in drama education.