The table shows the number of cases of foodborne botulism in the United States for the years 2001 to 2005. Let x represent the
number of years since 2000. Find a linear model for the data. List the correlation coefficient.
U.S. Foodborne Botulism Cases
Year
Cases 39 28 20 16
2001 2002 2003 2004 2005
18
Source: Centers for Disease Control
Linear model:
Correlation coefficient: r =
Predict the number of foodborne botulism cases in the United States in 2007.