首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
There were two widely divergent influences on the early development of statistical methods. Statistics had a mother who was dedi
There were two widely divergent influences on the early development of statistical methods. Statistics had a mother who was dedi
admin
2013-06-02
51
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://kaotiyun.com/show/SI67777K
0
大学英语六级
相关试题推荐
A、Givinglecturesinschools.B、Providingfreebottlesofsuncream.C、Providingbeachumbrellaattheseaside.D、Providingfree
A、Themanshouldgotobedateleven.B、Themanshouldgiveupwatchingthemovie.C、Themanshouldstayupandwatchtheprogra
Manyprivateinstitutionsofhighereducationaroundthecountryareindanger.Notallwillbesaved,andperhapsnotall【B1】__
A、2,000.B、4,000.C、7,000.D、9,000.B选项表明,本题与数字有关,故听音时应留意与数字相关的信息。Hashibe和她的同事用统计学的方法在之前的一些小型研究的基础上进行了一次大规模的研究,她们找来了4,000名有口腔癌和咽
A、Theyshouldcallthefiredepartment.B、Themanshouldgotothepartyagain.C、Themanshouldcontactthenewspaper.D、Thema
A、Becausetheywerenoteasilyburnedandcanlastlong.B、Becausetheywereverycheapmaterials.C、Becausetheycouldbefound
A、Toprotectbeachfrontproperty.B、Toreducethetrafficonbeachroads.C、Toprovideprivacyforhomeowners.D、Todefineprope
A、Commentingonapicture.B、LookingatsomepaintC、Paintingapicture.D、Comparingtwopaintings.AM:Thatistheworstpainti
Igreatlyappreciate________________(两年前给我的出国留学的机会).
随机试题
患者,男性,40岁。乏力、食欲减退半个月。查体:肝于肋缘下1cm,脾侧位可及。HBsAg(+)、HBeAg(+)、抗一HBe(一)、抗一HBclgM(+)、抗一HBs(一)。疑似诊断为
长期应用某种药物后需要增加剂量才能奏效,这种作用为()
下列不属于机械加压送风系统主要组成的是()
公司债券的种类包括( )。Ⅰ.信用公司债券Ⅱ.不动产抵押公司债券Ⅲ.保证公司债券Ⅳ.证券公司债券
封闭式基金在证券交易所上市交易,通过证券公司进行委托买卖。()
下列言论中,属于孟子的包括()。
我国社会福利行政机构体系运作方式的改革不包括()。
当一个人看到其他人正在完成某项任务时,自己也想要更快更好地完成任务;在小组讨论中当学生看到其他学生积极发言时,自己也会积极思考。这些现象是()。
法律是统治阶级意志的体现。下列叙述中,正确揭示法律特征的有()
【程序】**主程序:Z.PRGSETTALKOFFSTORE10TOX1,X2,X3X1=X1+1DOZ1?X1+X2+X3RETURNSETTALKONRETURN**子程序:Z1.PRGX2=X2+1DO
最新回复
(
0
)