2. As shown in the table below, a person's target heart rate during exercise changes
as the person gets older.
Target Heart Rate
(beats per minute)
Age
(years)
20
25
30
35
135
132
129
125
122
40
45
119
50
115
Which values represents the linear correlation
coefficient, rounded to the nearest
thousandth, between a person's age, in years,
and that person's target heart rate, in beats per
minute?
a. -0.999
b. -0.664
c. 0.998
d. 1.503