This wide-ranging, jargon-free dictionary contains over 1,700 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. The entries are generously illustrated with useful figures and diagrams, and include previously 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 notations. Fully updated, the Dictionary of Statistics contains over 30 biographies as well as internet links that point to useful sites for further information and study and many additional illustrative examples that clarify terms by showing them in use.