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
35
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://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
OnaccountoftherapidincreaseoftradewithChina,wehaverecentlyestablishe
纳税人发生解散、破产、撤销以及其他情形,依法终止纳税义务的,应在向工商′管理机关
设计单位交付设计资料及文件后,按规定收取设计费用所包含的应提供的相应的服务工作中
脑膜脑膨出的临床及声像图表现,不正确的是A.缺损部位以枕部常见 B.是胎儿最常
方药配伍中寓“清金制木”之义的是A.桑菊饮 B.泻白散 C.凉膈散 D.羚
A.热证转寒B.由里出表C.由表入里D.虚证转实E.实证转虚感受外邪,先有恶寒发
在信号检测实验中,如果击中概率为0.80,虚报概率为0.20,则该实验中的卢值为
和谐统一建设,发展城乡文明 “采菊东篱下,悠然见南山”“绿树村边合,青山郭
(2011年)材料:2007年以来,金融危机给全球经济造成了深刻影响,面对法院执
A.药物因素 B.性别因素 C.给药方法 D.生活和饮食习惯 E.工作和
最新回复
(
0
)