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Year Passing yards, y Touchdowns, t 2000 6 0 2001 2843 18 2002 3764 28 2003 3620 23 2004 3692 28 2005 4110 26 2006

Year Passing yards, y Touchdowns, t
2000 6 0
2001 2843 18
2002 3764 28
2003 3620 23
2004 3692 28
2005 4110 26
2006 3529 24
2007 4806 50
2008 76 0
2009 4398 28
2010 3900 36
2011 5235 39
2012 4827 34
2013 4343 25
2014 4109 33
2015 4770 36
2016 3554 28
2017 4577 32
2018 2748 17
  • 2 (a) Find the correlation coefficient, accurate to four significant figures, between the number of touchdowns, t, and the number of passing yards, y..
  • 2 (b) Find the equation of the regression line, y = n*t + k, giving the line of best fit for the number of passing yards, y, as a function of the number of touchdowns, t. What is the slope, n, of this line, accurate to two decimal places?
  • 2 (c) Find the equation of the regression line, y = n*t + k, giving the line of best fit for the number of passing yards, y, as a function of the number of touchdowns, t. What is the value of k for this line, accurate to two decimal places?
  • 2 (d) Use the regression line you found in 2 (b) and 2 (c) to find the number of touchdowns expected if Brady passes for 4000 yards. Use the values stored in your calculator or spreadsheet, without rounding them, and give an answer with four significant figures.
  • 2 (e) Use the regression line you found in 2 (b) and 2 (c) to find the number of passing yards expected if Brady throws 45 touchdowns. Use the values stored in your calculator or spreadsheet, without rounding them, and give an answer with two decimal places.

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