This wide-ranging, jargon-free dictionary contains over 2,000 entries on all aspects of statistics including terms used in computing, mathematics, operational research, and probability, as well as biographical information on over 200 key figures in the field, and coverage of statistical journals and societies. It embraces the whole multi-disciplinary spectrum of this complex subject, and will be invaluable for students and professionals from a wide range of disciplines, including politics, market research, medicine, psychology, pharmaceuticals, and mathematics. The entries are generously illustrated with useful figures and diagrams, and include worked examples where applicable, which place them in a practical context. Appendices include a historical calendar of important statistical events, and tables of statistical and mathematical notation. Fully updated for the second edition, the dictionary now boasts over 200 new entries including over 30 new biographies, as well as internet links which point to useful sites for further information, and many additional illustrative examples that clarify terms by showing them in use. Concise and practical, this is an invaluable work of reference for students and professionals in fields related to statistics, and a clear introduction to the subject for the general reader.