The following table shows the inflation rate and unemployment rate, both in percent, for the years 1981-2008. We will investigate some methods for predicting unemployment.

	x(L1)	y (L2)
Year	Inflation	Unemployment
1981	8.9	7.6
1982	3.8	9.7
1983	3.8	9.6
1984	3.9	7.5
1985	3.8	7.2
1986	1.1	7
1987	4.4	6.2
1988	4.4	5.5
1989	4.6	5.3
1990	6.1	5.6
1991	3.1	6.8
1992	2.9	7.5
1993	2.7	6.9
1994	2.7	6.1
1995	2.5	5.6
1996	3.3	5.4
1997	1.7	4.9
1998	1.6	4.5
1999	2.7	4.2
2000	3.4	4
2001	1.6	4.7
2002	2.4	5.8
2003	1.9	6
2004	3.3	5.5
2005	3.4	5.1
2006	2.5	4.6
2007	4.1	4.6
2008	0.1	5.8

Enter inflation data into L1 and unemployment data into L2. Be sure to check that the last entries match up correctly. You should have 28 matched entries in L1 and L2:

\fLZ L3 LI =LZL1 LZ L3 Li(27) =