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	710	50	2001	943	80
1978	462	21	1990	718	47	2002	964	94
1979	480	23	1991	680	52	2003	979	73
1980	496	15	1992	678	39	2004	984	68
1981	514	23	1993	676	34	2005	1010	80
1982	512	21	1994	698	48	2006	1023	91
1983	527	15	1995	711	42	2007	1028	74
1984	559	33	1996	731	59	2008	1011	89
1985	587	33	1997	756	54	2009	983	98
1986	615	32	1998	808	67	2010	942	84
1987	645	39	1999	831	83	2011	920	89
1988	676	43	2000	880	79	2012	902	81	2013	915	72

(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.