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x (year) 2005 2006 2007 2008 2009 y (sales) 12 19 29 37 45 Find the least square regression line y = a x +
x (year) | 2005 | 2006 | 2007 | 2008 | 2009 |
y (sales) | 12 | 19 | 29 | 37 | 45 |
- Find the least square regression line y = a x + b.
- Use the least squares regression line as a model to estimate the sales of the company in 2012 and 2020.
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