Manatees are large, gentle, slow-moving creatures found along the coast of Florida. Many manatees are injured or killed by boats. below contains data on the number of boats registered in Florida (in thousands) and the number of manatees killed by boats for the years between 1977 and 2013. (data are distorted):

YEAR	BOATS	MANATEES	YEAR	BOATS	MANATEES	YEAR	BOATS	MANATEES
1977	447	13	1989	711	51	2001	943	82
1978	460	21	1990	718	46	2002	963	95
1979	482	24	1991	680	53	2003	979	73
1980	498	15	1992	678	38	2004	983	70
1981	514	24	1993	678	35	2005	1009	79
1982	513	19	1994	695	49	2006	1023	91
1983	525	16	1995	713	41	2007	1026	73
1984	560	35	1996	732	59	2008	1009	89
1985	583	33	1997	756	55	2009	983	98
1986	613	33	1998	809	65	2010	944	83
1987	646	40	1999	830	81	2011	921	87
1988	677	43	2000	882	79	2012	901	81	2013	916	70

(a) Find the correlation rr (0.001)

rr =

(b) Find the equation of the least-squares line (0.001) for predicting manatees killed from thousands of boats registered.

yy^ = +xx

(c) What would you predict (0.1) number of manatees killed by boats to be if there are 900,000 boats registered?

(d) Predict (0.1) manatee deaths if there were no boats registered in Florida.