6.Unit sales (in 1000s of units) for Kingston Products and Mile 10 Inc. are shown for the last four years.

Compute the (population) covariance for the two sets of data.

Year Kingston Mile 10

1 6.9 15.4

2 6.3 14.7

3 7.1 16.1

4 7.4 16.5

Profits (in $millions) for Caldwell-Hewitt's US Division and European Division over the past four years are shown below.

Compute the (population) correlation coefficient.

Year Kingston Mile 10

1 6.9 15.4

2 6.3 14.7

3 7.1 16.1

4 7.4 16.5