The following table shows the number A, in thousands, of federal methamphetamine arrests t years after 2006.
t 0 1 2 3 A 5.81 5.54 4.74 4.64A: Find the equation of the regression line.B: Plot the data along with the regression line.C: Explain in practical terms the meaning of the slope of the regression equation.D: What number of arrests does the regression line predict for 2014?
What will be an ideal response?
A: 
?
B:
?
C: During the period from 2000 to 2004, the number of federal methamphetamine arrests decreased by about 0.43 thousand each year.
?
D: 2.39 thousand
Mathematics
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