"This best-selling textbook has been revised by adding a chapter on the theory of games. First published in 1957 this book continues to serve as a text for students taking statistics as a course in Commerce, Management, Economics or any other area of the social sciences. The underlying idea behind this book is two-fold: first, the presentation of the subject in a manner such that the pre-requisite for understanding its contents is only an elementary knowledge of algebra and second, to serve students at both the undergraduate and the postgraduate level. Emphasis has been laid on the significance of various statistical concepts to help readers understand and interpret them. A large number of illustrations have been provided to better demonstrate the use of statistical techniques in diverse situations and understand their applicability better. "