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