Brings together, in a ready-access encyclopedic format, theories, methods, applications, and historical background in the statistical sciences. More than 4,000 entries by leading statisticians, mathematicians, educators, and major figures in the development of statistics cover all principle subfields including probability theory, statistical distribution theory, computational methods, sampling survey methods, decision theory, sequential analysis, and multivariable analysis. Fully indexed. 'Masterpiece is the best possible description...its potential for simplifying and clarifying statistical communication enriches us all.'--Roger H. Moore, Bureau of the Census, in Journal of the American Statistical Association.