Answer Happy

Manatees are large, gentle sea creatures that live along the Florida coast. Many manatees are killed or injured by boats. In Florida, manatee deaths from powerboat encounters have been at the center of considerable controversy between environmentalists and boat operators. The Florida Monate Here are data on registered Florida Pleasure Craft (in tens of thousands) and watercraft-related manatee deaths in Florida in the years 1991 to 2000: Year 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 Pleasure Craft Registrations (in tens of thousands) 68 68 67 70 71 73 76 81 83 84 Manatee Deaths 53 38 35 49 42 60 54 67 82 78 We want to examine the relationship between the number of pleasure boats registered and the number of manatees killed by boats. 1. Which is the independent variable and which is the dependent variable? Independent: Dependent: 2. Make a scatterplot of these data in your graphing calculator. What does the scatterplot show about the relationship between these variables?