Providing wide-ranging and jargon-free definitions, this dictionary contains over 2,000 A to Z entries on all aspects of statistics, including terms used in computing, mathematics, and probability. It also includes biographical information on over 200 key figures in the field and coverage of statistical journals and societies. Information is presented in a clear and practical manner and web links, which are listed and regularly updated on a dedicated companion website, provide valuable extra information. Many entries are illustrated with useful figures and diagrams, and include worked examples where applicable. Useful appendices include a historical calendar of important statistical events, lists of statistical and mathematical notation, and statistical tables. This is an invaluable dictionary for statistics students and professionals from a wide range of disciplines, including economics, politics, market research, medicine, psychology, pharmaceuticals, and mathematics.