Posted by **Carl** on Thursday, June 2, 2011 at 6:54pm.

6. In a study on caffeine and stress, college students indicated how many cups of coffee they drink per day and their current stress level on a scale of 1 to 10. The table shows the survey results. Using a web-calculator, obtain the appropriate correlation coefficients.

Number of cups of coffee Stress level

3 5

2 3

4 3

6 9

5 4

1 2

7 10

3 5

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