Question

This Ones Hard

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