Find the correlation coefficient r to determine whether there is a correlation between the two variables.
(a) r
(b) There is
O A. a perfect negative correlation between z and y
O B. a negative correlation between z and y
C. a nonlinear correlation between z and y
O D. a perfect positive correlation between z and y
O E. a positive correlation between z and y
F. little or no linear correlation between z and y
z
0.1
1.1
2
3.5
4.6
5.7
6.5
Y
0.1
1.1
2
3.5
4.6
5.7
6.5
7.3
7.3
8
8
9.3 9.3
10.4 10.4
11.9 11.9
12.2 12.2
13.3 13.3
14.7 14.7