Johnson, Robert Russell, 1939- Just the essentials of Elementary statistics / Robert Johnson, Patricia Kuby. - 2a. ed. - Pacific Grove ; London : Duxbury Press, 1999. - xv, 526 p. : ils. ; 24 cm. Incluye apéndices e índices. Rec. Prop. Esc. ISBN: 0534357792 Subjects--Topical Terms: Estadistica