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
2010-01-26
43
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 led to modern 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 may 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 unwieldy 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 a knowledge of the characteristics of only a sample of the population.
Describing and tabulating are associated with ______.
选项
A、inferential statistics
B、descriptive statistics
C、theories of probability
D、inefficiency of counting
答案
B
解析
从文章的第二段可以得知,描述和列表是描述性统计方法的两种形式。再看四个选项。A“推理性统计”,没有任何关系;B“描述性统计”,正好相关;C“可能性理论”,从第一段末可知。该理论是用于推理性统计的;D“计算的无效”,与文章内容不符。故选B。
转载请注明原文地址:https://kaotiyun.com/show/lDdK777K
0
大学英语六级
相关试题推荐
Itisimportantforjobseekerstoknowthecultureofacompany________termsofitsattitudetotraininganddevelopment.
Whatisthepassagemainlyabout?AccordingtotheUSNationalHeart,LungandBloodInstitute,thereasonwhyoldermothers’c
Whatisthepassagemainlyabout?AccordingtotheUSNationalCenterforHealthStatistics,theincreasedobesityintheUSis
Freud’sconceptsincluded______.AccordingtoFreud’sdevelopmentalconceptsatwhichstageofdevelopmentistheindividualLE
Whatisthepassagemainlyconcerned?AccordingtothePassage,whatcontributedtothedevelopmentofrealestate?
Chinahasoutlinedanewapproachtoforeigninvestment,withplannerssayingtheywillnowfocuslessonattractinglargeamoun
Chinahasoutlinedanewapproachtoforeigninvestment,withplannerssayingtheywillnowfocuslessonattractinglargeamoun
Chinahasoutlinedanewapproachtoforeigninvestment,withplannerssayingtheywillnowfocuslessonattractinglargeamoun
随机试题
太平洋瑞姆贸易有限公司(PRTC有限责任公司)PRTC有限责任公司新上任的CEO路易斯•巴迪莱特以让公司脱离困境而闻名遐迩,他成功地为许多公司制定战略,拯救了许多走向衰退的公司。在连续三个会计年度利润滑坡之际,PRTC公司的董事会决定请路易斯•巴迪莱特出
暑邪与热邪致病的共同特点是()。
对于病原体不明的细菌性角膜炎,首选的抗菌药物治疗方案是
斜坡堤堤心石水上抛填块石,应根据()等自然条件对块石产生的漂流的影响,确定抛石船的驻位。
下列音乐作品、创作者与同籍对应不正确的是()。
闻一多的《七子之歌——澳门》创作时,澳门的占领者是()。
力颖电脑软件有限责任公司由张某、李某等10人各投资20万元于2006年设立,公司章程对分红、增资等采用了公司法的基本规定,未作特别约定。李某实际只出资10万元,尚拖欠10万元出资未缴。其余股东均已按期足额缴纳出资。2008年年底分红时,张某提出李某一直未按
在体育教学中可预测的危险因素包括:因学生的思想态度产生的危险因素;因学生身体和活动内容的差异产生的危险因素;因学生的身体原因产生的危险因素;因场地条件变化产生的危险因素;因学生身体状况变化产生的危险因素;因特殊天气产生的危险因素。()
EvelynCokespent20yearsasahomecareaidehelpingtheelderlyandthesick,butshedidnotliveandseefairlaborlaws【M1
Whenyouthinkaboutthegrowthofhumanpopulationoverthelastcenturyorso,itisalltooeasytoimagineitmerelyasani
最新回复
(
0
)