ASTM-D4686 Historical Revision Information
Standard Guide for Identification and Transformation of Frequency Distributions (Withdrawn 2009)

Show Complete Document History

Document Center Inc. is an authorized dealer of ASTM standards.
The following bibliographic material is provided to assist you with your purchasing decision:

Standard Guide for Identification and Transformation of Frequency Distributions (Withdrawn 2009)


1.1 This guide gives the rudiments of identification of some of the most common and useful frequency distributions. It does not give rigorous identification. To achieve exactitude, the procedures similar to those given by Shapiro should be used.

1.2 This guide provides a key to identify frequency distributions.

1.3 This guide gives ways to select the proper transformation to use to transform a particular set of data to one which can be modeled by the normal distribution, if such a transformation can be found at all.

1.4 This guide includes the following topics:

Topic TitleSection
Referenced Documents
Significance and Use
Key to Distributions
Binomial Frequency Distribution
Poisson Frequency Distribution
Normal Frequency Distribution
Sample Average Distribution
Other Distributions
Transformations of Data

Significance and Use

In measuring, testing, and experimenting, statistical tests are made to determine whether the observed effect of the introduction of a factor is real or simply due to chance. The appropriate statistical test to use depends on the kind of distribution used to model the data. Distribution identification is useful in selecting the most powerful statistical test.

Note 2—There are statistical tests which can be used for data for which a parametric distribution cannot be selected. But these non-parametric tests do not discriminate as well as the distribution-dependent tests.

For certain types of data, a transformation can be made which will make it possible to use the hypothesis that the normal distribution is a suitable model for the transformed data. When this hypothesis can be made, the analysis of the data is made much easier.


rudiments; distributions; exactitude

To find similar documents by ASTM Volume:

07.02 (Textiles (II): D4393 - latest)

To find similar documents by classification:

59.080.30 (Textile fabrics Including nonwovens, felts, lace, etc.)

This document comes with our free Notification Service, good for the life of the document.

This document is available in either Paper or PDF format.

Document Number


Revision Level

1991 R03 EDITION



Modification Type


Publication Date

Nov. 1, 2003

Document Type


Page Count

4 pages

Committee Number