首页
登录
职称英语
There were two widely divergent influences on the early development of stati
There were two widely divergent influences on the early development of stati
游客
2024-05-08
2
管理
问题
There were two widely divergent influences on the early development of statistical methods. Statistics had a mother who was dedicated to keeping orderly records of governmental units(state and statistics come from the same Latin root, status) and a gentlemanly gambling father who relied on mathematics to increase his skill at playing the odds in games of chance. The influence of the mother on the offspring, statistics, is represented by counting, measuring, describing, tabulating, ordering, and the taking of censuses all of which hid to modem descriptive statistics. From the influence of the father came modern inferential statistics, which is based squarely on theories of probability.
Descriptive statistics involves tabulating, depicting, and describing collections of data. These data may be either quantitative, such as measures of height, intelligence, or grade level—variables that are characterized by an underlying continuum—or the data my represent qualitative variables, such as sex, college major, or personality type. Large masses of data must generally undergo a process of summarization or reducing to comprehensibly form the properties of an otherwise un- wieldy mass of data.
Inferential statistics is a formalized body of methods for solving another class of problems that present great difficulties for the unaided human mind. This general class of problems characteristically involves attempts to make predictions using a sample of observations. For example, a school superintendent wishes to determine the proportion of children in a large school system who come to school without breakfast, have been vaccinated for flu, or whatever. Having a little knowledge of statistics, the superintendent would know that it is unnecessary and inefficiency to question each child; the proportion for the entire district could be estimated fairly accurately from a sample of as few as 100 children. Thus, the purpose of inferential statistics is to predict or estimate characteristics of a population from knowledge of the characteristics of only a sample of the population.
选项
A、Development and application of statistics.
B、Origin of descriptive statistics.
C、Limitations of inferential statistics.
D、Importance of statistics.
答案
A
解析
典型的归纳概括题,要求考生归纳总结文章的中心思想。首先细想一下全文的内容概要,再看四个选项:A“统计学的发展与应用”,正是文章所讲的主要内容:B“描述性统计”的起源,只说了文章中很小的一个方面;C“推理统计方法的局限性”,文章中没有提及;D“统计的重要性”,不是本文的重点。综合比较,A正确。
转载请注明原文地址:https://www.tihaiku.com/zcyy/3589709.html
相关试题推荐
[originaltext]SpeakingattheSustainableDevelopmentconferenceinLondon,Bri
[originaltext]SpeakingattheSustainableDevelopmentconferenceinLondon,Bri
[originaltext]Coffeeisoneoftheworld’smostwidely-enjoyedbeverages.Flavo
A、Modernscholarstendtodenytheinfluenceofcultureonsocialdevelopment.B
【B1】[br]【B10】A、associationsB、influencesC、elementsD、characteristicsAassocia
ARVshaven’tbeenusedwidelytopreventHIVtransmissionorinfectionforlack
ARVshaven’tbeenusedwidelytopreventHIVtransmissionorinfectionforlack
ARVshaven’tbeenusedwidelytopreventHIVtransmissionorinfectionforlack
Havingbroughttheopportunitiesfordevelopment,theeconomicglobalization____
ARVshaven’tbeenusedwidelytopreventHIVtransmissionorinfectionforlack
随机试题
Somanyofusholdontolittleresentmentsthatmayhavestemmedfromanar
下列哪项不是肿瘤的转移途径()A.血道转移 B.远位转移 C.淋巴道转
目前,我国封闭式基金在二级市场上通常按( )交易。A.市场价格 B.份额净值
干化学分析仪采用多层薄膜固相试剂技术,利用Kuvelka-Munk理论检测物质含
采购方对产品进行过程质量控制,以保证产品质量达到招标时的要求,可在合同中指出的条
第一次提出“新民主主义革命”的科学概念的是A.《中国革命和中国共产党》 B.《
阴阳消长是A.绝对的 B.相对的 C.稳定的 D.无条件的
外部刺激物的温度等于皮肤的生理零度,会( )温度觉A.不产生 B.产生 C
高填方路堤两侧超填宽度一般控制在( )cm,逐层填压密实,然后削坡整形。A.10
一般而言,流行病学研究的起点是()。 A.描述性研究 B.队列研究 C.病
最新回复
(
0
)