ImageVerifierCode 换一换
格式:PDF , 页数:4 ,大小:51.01KB ,
资源ID:177487      下载积分:12 积分
快捷下载
登录下载
邮箱/手机:
温馨提示:
快捷下载时,用户名和密码都是您填写的邮箱或者手机号,方便查询和重复下载(系统自动生成)。 如填写123,账号就是123,密码也是123。
特别说明:
请自助下载,系统不会自动发送文件的哦; 如果您已付费,想二次下载,请登录后访问:我的下载记录
支付方式: 支付宝扫码支付 微信扫码支付   
验证码:   换一换

加入VIP,免费下载
 

温馨提示:由于个人手机设置不同,如果发现不能下载,请复制以下地址【https://www.wnwk.com/docdown/177487.html】到电脑端继续下载(重复下载不扣费)。

已注册用户请登录:
账号:
密码:
验证码:   换一换
  忘记密码?
三方登录: QQ登录  

下载须知

1: 本站所有资源如无特殊说明,都需要本地电脑安装OFFICE2007和PDF阅读器。
2: 试题试卷类文档,如果标题没有明确说明有答案则都视为没有答案,请知晓。
3: 文件的所有权益归上传用户所有。
4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
5. 本站仅提供交流平台,并不能对任何下载内容负责。
6. 下载文件中如有侵权或不适当内容,请与我们联系,我们立即纠正。
7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。

版权提示 | 免责声明

本文(ASTM_D_4686_-_91_2003.pdf)为本站会员(益****师)主动上传,蜗牛文库仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知蜗牛文库(发送邮件至admin@wnwk.com或直接QQ联系客服),我们立即给予删除!

ASTM_D_4686_-_91_2003.pdf

1、Designation:D 4686 91(Reapproved 2003)Standard Guide forIdentification and Transformation of FrequencyDistributions1This standard is issued under the fixed designation D 4686;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year o

2、f last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon(e)indicates an editorial change since the last revision or reapproval.1.Scope1.1 This guide gives the rudiments of identification of someof the most common and useful frequency distributions.It doesnot

3、 give rigorous identification.To achieve exactitude,theprocedures similar to those given by Shapiro2should be used.1.2 This guide provides a key to identify frequency distri-butions.1.3 This guide gives ways to select the proper transforma-tion to use to transform a particular set of data to one whi

4、ch canbe modeled by the normal distribution,if such a transformationcan be found at all.1.4 This guide includes the following topics:Topic TitleSectionScope1Referenced Documents2Terminology3Significance and Use4Key to Distributions5Binomial Frequency Distribution6Poisson Frequency Distribution7Norma

5、l Frequency Distribution8Sample Average Distribution9Other Distributions10Transformations of Data112.Referenced Documents2.1 ASTM Standards:3D 123 Terminology Relating to TextilesD 4392 Terminology for Statistically Related TermsE 456 Terminology Relating to Quality and Statistics2.2 ASTM Adjuncts:T

6、EX-PAC4NOTE1Tex-Pac is a group of PC programs on floppy disks,availablethrough ASTM Headquarters,100 Barr Harbor Drive,Conshohocken,PA19428,USA.Many of the transformations described in this Guide can bemade using a program in this adjunct.3.Terminology3.1 Definitions:3.1.1 Bernoulli distributionsee

7、binomial distribution.3.1.2 binomial distribution,nthe frequency distributionwhich has the probability function:Pr!5n!/r!n 2 r!#!prqn2r(1)where:P(r)=the probability of obtaining exactly r“successes”inn independent trials,p=the probability,constant from trial to trial,of obtain-ing a“success”in a sin

8、gle trial,andq=1 p.(Syn.Bernoulli distribution)3.1.3 distributionsee frequency distribution of a sampleand frequency distribution of a population.3.1.4 frequency distribution,nof a population,a functionthat,for a specific type of distribution,gives for each value ofa random discrete variate,or each

9、group of values of a randomcontinuous variate,the corresponding probability of occur-rence.3.1.5 frequency distribution,nof a sample,a table givingfor each value of a discrete variate,or for each group of valuesof a continuous variate,the corresponding number of observa-tions.3.1.6 normal distributi

10、on,nthe distribution that has theprobability function:fx!51/s!2p!1/2exp2x 2!2/2s2#(2)where:x=a random variate,=the mean of the distribution,ands=the standard deviation of the distribution.(Syn.Gaussian distribution,law of error)3.1.7 Poisson distribution,nthe distribution which has asits probability

11、 function:Pr!5 e2r/r!(3)1This guide is under the jurisdiction of ASTM Committee D13 on Textiles andis the direct responsibility of Subcommittee D13.93 on Statistics.Current edition approved July 15,1991.Published September 1991.Originallypublished as D 4686 87.Last previous edition D 4686 90.2Shapir

12、o,Samuel S.,How to Test Normality and Other Distribution Assump-tions,American Society for Quality Control,Milwaukee,WI,1980.Vol.3 of theseries,The ASQC Basic References in Quality Control:Statistical Techniques,Edward J.Dudewitz,ed.3For referenced ASTM standards,visit the ASTM website,www.astm.org,

13、orcontact ASTM Customer Service at serviceastm.org.ForAnnual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.4PC programs on floppy disks are available through ASTM.For a 312inch diskrequest PCN:12-429040-18,for a 514inch disk request PCN:12-4

14、29041-18.1Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959,United States.where:P(r)=probability of obtaining exactly r occurrences of anevent in one unit,such as a unit of time or area,=both mean and variance of distribution,ande=base of natural logarith

15、ms.3.1.8 probability function,nof a continuous variate,themathematical expression whose definite integral gives theprobability that a variate will take a value within the two limitsof integration.3.1.9 probability function,nof a discrete variate,themathematical expression which gives the probability

16、 that avariate will take a particular value.3.1.10 transformation,nthe change from one set of vari-ables,x,to another set,y,by the use of a function,y=f(x).3.1.11 For definitions of textile terms used in this guide,refer to Terminology D 123.For definitions of other statisticalterms used in this guide,refer to Terminology D 4392,Termi-nology E 456,or appropriate textbooks on statistics.4.Significance and Use4.1 In measuring,testing,and experimenting,statisticaltests are made to determine whether

copyright@ 2008-2023 wnwk.com网站版权所有

经营许可证编号:浙ICP备2024059924号-2