In Exercise, standardize the value of the independent variable based on its definition and make a scatterplot of the data.
Nutrition—Tea Consumption: Let x represent the number of years since 1980.
Year | American Per Person Consumption of Tea (in gallons) |
1980 | 7.3 |
1990 | 6.9 |
1995 | 7.9 |
2000 | 7.8 |
2004 | 8.0 |
2005 | 8.0 |
2006 | 8.4 |
2007 | 8.4 |
2008 | 8.0 |
Source: U.S. Department of Agriculture
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