Chapman, D. G. Elementary probability models and statistical inference / Douglas G. Chapman, Ronald A. Schaufele. - Waltham, Mass. : Xerox College Pub., c1970. - xix, 358 p. : illus. 24 cm. Bibliography: p. 339. ISBN: 536000859 Subjects--Topical Terms: Probabilities.;Mathematical statistics. Universal Decimal Class. No.: 310