The table below shows the numbers of subscribers (in millions) of a cellular
Chapter 3, Problem 72(choose chapter or problem)
The table below shows the numbers of subscribers (in millions) of a cellular communications company in the United States for the years 2003 to 2005. (Source: U.S. Census Bureau) Year Subscribers 2003 158.7 2004 182.1 2005 207.9 (a) Create a system of linear equations for the data to fit the curve where is the year and corresponds to 2003, and is the number of subscribers. (b) Use Cramers Rule to solve your system. (c) Use a graphing utility to plot the data and graph your regression polynomial function. (d) Briefly describe how well the polynomial function fits the data.
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