Time-series Graph for Cell Phone subscriptions. The following table shows the numbers of cell phone subscriptions (in thousands) in the United States for various years. Construct a time-series graph of the data. “Linear”

growth would result in a graph that is approximately a straight line. Does the time-series graph appear to show linear growth?

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Year Number Year Number 1986 682 2000 109478 1988 2069 2002 140767 1990 5283 2004 182140 1992 11033 2006 233000 1994 24134 2008 262700 1996 44043 2010 302900 1998 69209