Transportation The estimated number of scheduled passengers on U.S. commercial airlines (in billions) in selected years is shown in the following tablet†:
Year | Passengers |
2002 | .63 |
2003 | .64 |
2004 | .69 |
2005 | .72 |
2006 | .77 |
2007 | .79 |
2008 | .80 |
2009 | .84 |
(a) Find the least-squares regression line that models these data, with x = 2 corresponding to 2002.
(b) Extimate the number of passengers in 2012 and in 2016.
†Data and projections are from the Federal Aviation Administration.
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