An ecologist tracked deer that were born in 1997. The number of deer,d, living each subsequent year is recorded in the table below:

Year	1997	1998	1999	2000	2001	2002	2003	2004	2005
Deer	195	191	182	153	121	97	89	79	63

(a) Use a calculator or computer to find the least squares regression line,d=mt+b, where the independent variable denotes the number of years,t, after 1997. Enter the equation for the line below. d=

(b) What is the correlation coefficient of the regression line? r= (Enterraccurate to at least three decimal places.)