In a study of caffeine and stress, college students indicate how many cups of coffee they drink per day and their stress level on a scale of 1 to 10. The data follow:

Number of cups of coffee:

3

2

4

6

5

1

7

3

Stress Level:

5

3

3

9

4

2

10

5

Calculate a Pearson's r tp determine the type of and strength of the relationship between caffeine and stress level.