The revenues of Amazon are shown in Table 5 for various years.
Table 5
Annual Revenues of Amazon
YearRevenue (billions of dollars)
2001 ………………………………….. 3.12
2003 ………………………………….. 5.26
2005 ………………………………….. 8.49
2007 …………………………………..14.84
2009 …………………………………..24.51
2011 …………………………………..48.08
2013 …………………………………..74.45
Let y be the annual revenue (in billions of dollars) of Amazon at x years since 2000.
a. Construct a scatterplot.
b. Is there a linear association, a nonlinear association, or no association?
c. Use technology to graph the equation  = 2.32(1.31)x on the scatterplot. Does the model come close to the data points?
d. Use the model to estimate the revenue in 2011. Compute the residual for your estimate.
e. Use the model to estimate the revenue in 2013. Compute the residual for your estimate.