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
2025-04-28
26
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 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 variable, such as sex, college major, or personality type. Large masses of data must generally undergo a process of summarization or reduction before they are comprehensible. Descriptive statistics is tool for describing or summarizing or reducing to comprehensible 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 inefficient 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. [br] Which of the following are counting and describing associated with?
选项
A、descriptive statistics
B、unknown variables
C、qualitative changes
D、inferential statistics
答案
A
解析
转载请注明原文地址:https://tihaiku.com/zcyy/4057160.html
相关试题推荐
Duringthenormaldevelopmentofself,achildisaffectedbycertaininflue
Duringthenormaldevelopmentofself,achildisaffectedbycertaininflue
Duringthenormaldevelopmentofself,achildisaffectedbycertaininflue
Duringthenormaldevelopmentofself,achildisaffectedbycertaininflue
Duringthenormaldevelopmentofself,achildisaffectedbycertaininflue
Duringthenormaldevelopmentofself,achildisaffectedbycertaininflue
Thereweretwowidelydivergentinfluencesontheearlydevelopmentofstati
Theonceseparateissueofenvironmentanddevelopmentarenow______linked.A、i
Malnutritionandtheresultingimpairedgrowthanddevelopmentinchildrenof
Malnutritionandtheresultingimpairedgrowthanddevelopmentinchildrenof
随机试题
Therocketengine,withitssteadyroarlikethatofawaterfallorathunde
Whatdoplantsdowhentheyarethirsty?[br][originaltext]Weallscream
Manypeoplehopethenewgovernmentwill______theunemploymentrate.A、reduceB
埃及最著名的三大金字塔是()。A.胡夫金字塔 B.纽塞拉金字塔 C.卡夫拉金
小儿急性,肾小球,肾炎风水相搏证的首选方剂是A、麻黄连翘赤小豆汤 B、银翘散
国家信息中心近日发布的《中国信息社会发展报告2015》显示,2015年全国信息社
影响国债销售价格的因素有()。 Ⅰ.市场利率 Ⅱ.承销商承销国债的中标成本
取得()后,证券经纪人方可执业。A.劳动合同 B.委托合同 C.执业前培训
患者男,33岁。干咳、胸痛,以自发性气胸入院。经积极治疗后已痊愈准备出院。护士告
关于价内税和价外税的说法,正确的是()。A.按税收与价格的关系划分为价内税和价
最新回复
(
0
)