An Introduction to the theory of statistics

Bibliographic data

Monograph

Identifikator:: 1751730271

URN:: urn:nbn:de:zbw-retromon-127610

Document type:: Monograph

Author:: Yule, George Udny http://d-nb.info/gnd/12910504X

Title:: An Introduction to the theory of statistics

Edition:: 8. ed. rev

Place of publication:: London

Publisher:: Griffin

Year of publication:: 1927

Scope:: XV, 422 S; Ill., Diagr

Digitisation:: 2021

Collection:: Economics Books

Usage license:: Get license information via the feedback formular.

Chapter

Document type:: Monograph

Structure type:: Chapter

Title:: Part I. The theory of atributes

Collection:: Economics Books

THEORY OF STATISTICS. AX to the sum S. The total value of S is accordingly ¢V, and the value of C— t—1 o=y/ So This is the greatest possible value of C' for a symmetrical ¢ x z-fold classification, and therefore, in such a table, for— - 7 “7 cannot exceed 0-707 : 316 : +366 . 0894 0913 1-926 D035 2943 t= 10 »y 0949 It is as well, therefore, to restrict the use of the “coefficient of contingency ” to 5 x 5-fold or finer classifications. At the same time the classification must not be made too fine, or else the value of the coefficient is largely affected by casual irregularities of no physical significance in the class-frequencies (cf. the remarks: in Chap. III. §§ 7-8). TasLE III. —Independence- Values of the Frequencies for Table IT. Eye-colour. Fair. | Brown. Black. | Red. Blue. | 2a or a SL TOM 1028 506 | 48°0 Grey or Green . ; . . - IR1303 | 1212 | 563 534 Brown . 2 v : I. 357 332 154 | 14+6 8. As the classification of Table II. is only 3 x 4-fold, it is rather crude for the purpose of calculating the coefficient, but will serve simply as an illustration of the form of the arithmetic. In Table ITI. are given the values of the independence frequencies, 2829 x 2811/6800=1169 and so on. The value of x2 is more readily calculated from equation (5) than from (3) :— 66

Access restriction

Copyright

fullscreen: An Introduction to the theory of statistics

Monograph

Chapter

Table of contents

Download

Monograph

Chapter

This page

Image fragment

Citation links

Citation recommendation