Statistics today / Ann Seymour Ukena ; with photo essays by Marion Lewenstein. Ukena, Ann Seymour, 1940- Statistics. HA29 .U34 1978 310 20 UKS Previous ed. published under title: Statistics, a friendly introduction. Includes index. New York : Harper & Row, c1978. c1978. 1978 Text xv, 459 p. : eng