Unemployment Rate The U.S. civilian unemployment rate (as a percent) is given by the table.
a. According to this table, what was the unemployment rate in 2003?
b. Graph the data from this table as a scatter plot, using the number of years after 1990 as x.
c. Graph the equation y = 0.0085x4 − 0.4385x3 + 8.2396x2 − 66.627x + 199.962 on the same axes as the scatter plot.
Year | Unemployment (%) |
1998 | 4.5 |
1999 | 4.2 |
2000 | 4.0 |
2001 | 4.7 |
2002 | 5.8 |
2003 | 6.0 |
2004 | 5.5 |
2005 | 5.1 |
2006 | 4.6 |
2007 | 4.6 |
2008 | 5.8 |
2009 | 9.3 |
(Source: Bureau of Labor Statistics)
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