AN INTRODUCTION TO THE 
THEORY OF STATISTICS 
G. UDNY (YULE, C.B.E, M.A, FRS, 
FELLOW OF ST. JOHN'S COLLEGE, AND 
UNIVERSITY LECTURER IN STATISTICS, CAMBRIDGE ; 
HONORARY VICE-PRESIDENT OF THE ROYAL STATISTICAL 
SOCIETY OF LONDON; 
HONORARY MEMBER OF THE AMERICAN STATISTICAL ASSOCIATION; 
MEMBER OF THE INTERNATIONAL STATISTICAL INSTITUTE ; 
FELLOW OF THE ROYAL ANTHROPOLOGICAL INSTITUTE. 
With 53 Figures and Diagrams, 
ea 
- TT 
EIGHTH EDITION, REVISED. 
LONDON: 
CHARLES GRIFFIN AND COMPANY, LIMITED, 
42 DRURY LANE, W.C.2 
1927. 
[All Rights Reserved.} 
BY