The tables give data on powerboats registered in Florida and manatees killed by collisions with powerboats from 1977 to 2016. Powerboat registrations (in thousands) and manatee Powerboat registrations (in thousands) and manatee deaths from powerboat collisions in Florida deaths from powerboat collisions in Florida Year Powerboats Deaths Year Powerboats Deaths 1977 447 13 1987 645 39 1978 460 21 1988 675 43 1979 481 24 1989 711 50 1980 498 16 1990 719 47 1981 513 24 1991 681 55 1982 512 20 1992 679 38 1983 526 15 1993 678 35 1984 559 34 1994 696 49 1985 585 33 1995 713 42 1986 614 33 1996 732 60 Powerboat registrations (in thousands) and manatee Powerboat registrations (in thousands) and manatee deaths from powerboat collisions in Florida deaths from powerboat collisions in Florida Year Powerboats Deaths Year Powerboats Deaths 1997 775 54 2007 1027 73 1998 809 66 2008 1010 90 1999 830 82 2009 982 97 2000 880 78 2010 942 83 2001 994 81 2011 922 87 2002 962 95 2012 902 81 2003 978 73 2013 897 73 2004 983 69 2014 900 69 2005 1010 79 2015 916 86 2006 1024 92 2016 931 104 The given figure shows a strong positive linear relationship between these two variables. 100 80 60 Manatee deaths from powerboat collisions 40 In 1997, there were 755,000 powerboats 20 registered and 54 manatee deaths. 400 600 800 1000 Powerboats registered (x 1000) Manatees are an endangered species. Imagine that Florida were to limit powerboat registration in a given year to 500,000. Predict the number of manatees killed by powerboats in such a year. (Pay attention to the fact that registrations in this data set are recorded in thousands.) Enter your answer rounded to two decimal places. 31.25 manatees killed = Incorrect