Chapter 9 Data Sets 2000 Election Age at first marriage Ages of couples Breakfast cereals Doctors and life expectancy Florida vote by country Fuel efficiency Gestation Human Development Index Inflation 2006 Interest rates 1950-2005 Life expectancy 2004 Marriage age 2007 Motorcycles Movies Oakland passengers Oil prices Penguins Smoking 2006 Swim the lake 2006 Swim the lake 2008 Tour de France 2007 Tour de France 2009 Tracking hurricanes 2007 Unwed births