Question

Here is a bivariate data set.

x	y
61	104.9
52.7	-11.8
53.4	15.1
68.4	123.7
68.8	89.8
68.6	88.7
86.4	110.8
82.3	151.3
61.8	123.1
47.3	55.7
82.8	122.5
68.3	72.9

Find the correlation coefficient.

r =
	[three decimal accuracy]

Answer 1