关于对随机变量数字特征新概念的讨论
首发时间:2009-08-19
摘要:根据统计研究对象标志的性质不同分为品质标志和数量标志。数字特征、位置特征、离散特征为品质标志表现统计对象要标识的名称;位置特征值、离散特征值为数量标志表现统计对象被观察、测量或计算得出的数值。由于在统计实际应用中不是分得很清楚,加之位置特征内容的扩大,引起离散特征的内容也相应扩大,从而促使标志变异指标内涵的扩展,进而有效地弥补了传统数字特征概念上的不足。本文在前期研究的相关成果的基础上对随机变量数字特征所属的位置特征和离散特征新增的内容进行规范性的归纳。对数字特征的新概念进行讨论。
关键词: 数字特征 位置特征 离散特征 位置特征值 离散特征值
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Regarding on the random variables of Digital characteristics the new concepts of the discussion
Abstract:According to the statistics study of the different nature of the object is divided into attribute logo and digital logo. The digital characteristic and location characteristic and discrete characteristic is the attribute logo statistics showed of the object to be logo of the name. The location characteristic-value and discrete characteristic-value is the digital-logo reflecting the statistics performance object is observed of the measured or calculated values. In addition the location characteristic for content the expansion. Discrete characteristics of the resulting content will be expansion. Thus to the promote variability indicator of Connotation the expansion. Then effectively of compensate for the digital-characteristics traditional in on exist of concept to deficiencies. In this paper, the relevance of the results of preliminary studies based on the random variables on the digital-characteristic belong location-characteristics and discrete-characteristic of the new content carry on normative generalize. Regarding the digital characteristic\
Keywords: digital characteristic location characteristic discrete characteristic location characteristic-value discrete characteristic-value
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No.3454317032212506****
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