Here is a bivariate data set.

x	y
34.6	79.5
36	58.5
33.6	40.4
52.1	-4.3
50.6	-17.8
40.7	45.6
30.3	45.6
47	18.2
49.7	-20.7
40.9	54.8
48.3	16.2
41.6	36.4

Find the correlation coefficient and report it accurate to three decimal places.
r =