Mood , Alexander M. Introduction to the theory of statistics / Alexander M. Mood , Franklin A. Graybill and Duane C. Bose . - 3rd. edition . - New Delhi : Mc. Grew Hill, 2016 564 p. ; 21 cm. ISBN 9780070445208 : Rs.795 * Statistical Economics - Economics * Franklin A. Graybill , auth * Duane C. Bose, auth