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

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INTRODUCTION. stand at the other extremity of the scale. Theirs are the sciences in which experiment has been brought to its greatest perfection. But even so, statistical methods still find application. In the first place, the methods available for eliminating the effect of disturbing circumstances, though continually improved, are not, and cannot be, absolutely perfect. The observer himself, as well as the observing instrument, is a source of error; the effects of changes of temperature, or of moisture, of pressure, draughts, vibra- tion, cannot be completely eliminated. Further, in the problems of molecular physics, referred to in the last sentences of § 6, multiplicity of causes is of the essence of the case. The motion of an atom or of a molecule in the middle of a swarm is dependent on that of every other atom or molecule in the swarm. 10. In the light of this discussion, we may accordingly give the following definitions :— By statistics we mean quantitative data affected to a marked extent by a multiplicity of causes. By statistical methods we mean methods specially adapted to the elucidation of quantitative data affected by a multiplicity of causes. | By theory of statistics we mean the exposition of statistical methods. The insertion in the first definition of some such words as “to a marked extent ” is necessary, since the term ‘statistics ” is not usually applied to data, like those of the physicist, which are affected only by a relatively small residuum of disturbing causes. At the same time, ‘statistical methods” are applicable to all such cases, whether the influence of many causes be large or not. REFERENCES. The History of the Words “Statistics,” “ Statistical” (1) Joun, V., Der Name Statistik ; Weiss, Berne, 1883. A translation in Jour. Roy. Stat. Soc. for same year. (2) YuLg, G. U., ““ The Introduction of the Words ‘Statistics,’ ¢ Statistical,’ inte $us English Language,” Jour. Roy. Stat. Soc., vol. lxviii., 1905, p. 391. The History of Statistics in General. (3) Jomx, V., Geschichte der Statistik, 1%¢ Teil, bis auf Quetelet; Enke, Stuttgart, 1884. (All published ; the author died in 1900. By far the best history of statistics down to the early years of the nineteenth century.) (4) MonL, ROBERT VON, Geschichte und Litteratur der Staatswissenschaflen, 3 vols. ; Enke, Erlangen, 1855-58. (For history of statistics see principally latter half of vol. iii.) A

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