This collection of thirty-nine original papers covers a variety of important topics, including multivariate analysis, testing procedures, multiresponse experiments, categorical data analysis, statistical inference, decision theory, stochastic processes, experimental design, and coding theory. Originally published in 1969. A UNC Press Enduring Edition -- UNC Press Enduring Editions use the latest in digital technology to make available again books from our distinguished backlist that were previously out of print. These editions are published unaltered from the original, and are presented in affordable paperback formats, bringing readers both historical and cultural value.