Annual high temperatures in a certain location have been tracked for several years. Let X represent the year and Y the high temperature. Based on the data shown below, calculate the correlation coefficient (to three decimal places) between X and Y. Use your calculator!

x y

4 26.06

5 27.65

6 29.24

7 30.23

8 30.42

9 34.61

10 33.9

11 34.99

12 39.68

r=____________