Find the equation of the line of best fit for the data. Find the value of the correlation coefficient r.

Christine’s Best Javelin Throws
Year
1997 1998 1999 2000 2001 2002 2003 2004
31.9 31.55 34.45 31.6 34 36.15 35.05 38.7
Distance(meters)

(Use x = 0 for 1997.)

My Answer Choices Are

A) y = 31.15x + 0.864; r = 0.7139281244

B) y = –0.864x + 31.15; r = 0.7139281244

C) y = 31.15x + 0.864; r = 0.8449426752

D) y = 0.864x + 31.15; r = 0.8449426752

Question

Find the equation of the line of best fit for the data. Find the value of the correlation coefficient r.

Christine’s Best Javelin Throws
Year
1997  1998  1999  2000  2001  2002   2003  2004
31.9   31.55 34.45  31.6   34    36.15  35.05  38.7
Distance(meters)

(Use x = 0 for 1997.)

My Answer Choices Are
		
A) y = 31.15x + 0.864; r = 0.7139281244
		
B) y = –0.864x + 31.15; r = 0.7139281244
		
C) y = 31.15x + 0.864; r = 0.8449426752
		
D) y = 0.864x + 31.15; r = 0.8449426752