An Introduction to the theory of statistics

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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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SUPPLEMENTS. I. NOTES SUPPLEMENTARY TO CHAPTER VI. 6. Position of Intervals.—It is said in the text that in some exceptional cases the observations exhibit a marked clustering round certain values. The word exceptional should hardly have been used. Whenever there is some doubt as to the final digit in reading a scale, scope is given to the idiosyncrasies of the observer and the distribution of frequency over the final digits is rarely uniform. The most conspicuous feature is usually the tendency to round off to the nearest unit, thus making 0 the most frequent final digit, but 5s may also be emphasised if emphasised on the scale itself, and the excesses of 0’s and 5s may be drawn in the most diverse ways from the other parts of the scale. TABLE A.—Frequency-distributions of Final Digits tn Measurements by Four Observers, Frequency of Final Digit per 1000. Final Digit. a 2, 0. 0 158 122 231 358 : 97 98 37 49 125 98 | 80 90 73 90 72 63 76 100 55 37 71 112 222 211 90 98 | 71 62 56 99 75 70 126 101 72 44 129 81 65 16 Total : J 0 Actual ob- ) servations A. B ¢ 1; 1001 999 100t 100+ 1258 3000 1000 1000 262

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