SOLUTION: The table shows the population of the United States, y (in millions), for the years 1990 through 1998. Year, t 1990 1991 1992 1993 1994 1995 1996 1997 1998

Question 1011759: The table shows the population of the United States, y (in millions), for the years 1990 through 1998.
Year, t 1990 1991 1992 1993 1994 1995 1996 1997 1998
Pop, y 249.9 252.6 255.4 258.1 260.6 263.0 265.5 268.0 270.5
Let t=0 for the year 1990. That means that t=8 for 1998. Enter the data in the Stat Lists L1 and L2. Graph a scatter plot for the data using ZoomStat. Sketch it.
Find the "least squares regression line" that fits this data. TI buttons are Stat - Calc - LinReg(a+bx). Round to three decimal places and write your equation.
Put your equation into Y1, graph it on your scatter plot, and show it below.
Use your equation to predict the population of the United States in 2006.

Thanks, I would like to see the steps and process if possible. If you can't show the graph, I understand, but it would be preferred.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
The table shows the population of the United States, y (in millions), for the years 1990 through 1998.
Year, t 1990 1991 1992 1993 1994 1995 1996 1997 1998
Pop, y 249.9 252.6 255.4 258.1 260.6 263.0 265.5 268.0 270.5
Let t=0 for the year 1990. That means that t=8 for 1998. Enter the data in the Stat Lists L1 and L2. Graph a scatter plot for the data using ZoomStat. Sketch it.
Find the "least squares regression line" that fits this data. TI buttons are Stat - Calc - LinReg(a+bx). Round to three decimal places and write your equation.
Put your equation into Y1, graph it on your scatter plot, and show it below.
Use your equation to predict the population of the United States in 2006.
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Comment:: If you have a TI graphing calculator (83 or 84), what
part of this problem do you not understand?
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Cheers,
Stan H.

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