Larry J. Stephens is a professor of mathematics at the University of Nebraska at Omaha. He has over 25 years of experience teaching mathematics and statistics. He has taught at the University of Arizona, Gonzaga University, and Oklahoma State University, and has worked for NASA, Livermore Laboratory, and Los Alamos National Laboratory. Dr. Stephens is the author of "Schaum's Outline of Beginning Statistics" and the co-author of "Schaum's Outline of Statistics, " both published by McGraw-Hill. He currently teaches courses in statistical methodology, mathematical statistics, algebra, and trigono...