Chris Olsen has taught statistics at George Washington High School in Cedar Rapids, IA, for over 25 years. Chris is a past member of the AP Statistics Test Development Committee and the author of the Teacher's Guide for Advanced Placement Statistics. He has been a table leader at the AP Statistics reading for 6 years, and since the summer of 1996 has been a consultant to the College Board. Chris leads workshops and institutes for AP Statistics teachers in the United States and internationally. Chris was the Iowa recipient of the Presidential Award for Excellence in Science and Mathematics Teaching in 1986. He was a regional winner of the IBM Computer Teacher of the Year award in 1988, and received the Siemens Award for Advanced Placement in mathematics in 1999. Chris is a frequent contributor to the AP Statistics listserv, and has reviewed materials for "The Mathematics Teacher," the AP Central Web site, The "American Statistician," and the "Journal of the American Statistical Association." He currently writes a column for "Stats" magazine. Chris graduated from Iowa State University with a major in mathematics, and while acquiring graduate degrees at the University of Iowa concentrated on statistics, computer programming, psychometrics, and test development. Currently he divides his duties between teaching and evaluation; in addition to teaching he is the assessment facilitator for the Cedar Rapids, Iowa, Community Schools. In his spare time he enjoys reading and hiking. He and his wife have a daughter, Anna, who is a graduate student in Civil Engineering at Cal Tech.Peck, Roxy is the author of 'Introduction to Statistics and Data Analysis ', published 2007 under ISBN 9780495118787 and ISBN 0495118788.