@book{93, author = {Mendenhall, William. and Beaver, Robert J.}, title = {A brief introduction to probability and statistics /}, publisher = {Duxbury/Thomson Learning,}, year = {c2002.}, address = {Pacific Grove, CA :}, note = {Includes index.}, url = {http://www.loc.gov/catdir/enhancements/fy1103/2001035807-d.html} }