Help with Correlation Regression?

I've been working on a problem for stats and cannot figure it out because I keep getting r=2.96. The argument is based on data from each of the past 15 years: number of exhibits indicates the minimum number of exhibits for at least 6 months out of the year, and number of visitors indicates the average number of people admitted to the zoo per day that year.
Number of exhibits are: 19, 22, 21, 24, 25, 25, 26, 27, 25, 26, 27, 27, 27, 28, and 30
Number of Visitors are: 718, 612, 702, 621, 676, 731, 720, 687, 770, 787, 795, 800, 829, 781, 783