To calculate the correlation coefficient for the data, we need the table that contains the two variables: the grade of the students and the number of pets they have. The correlation coefficient (denoted as $r$) measures the strength and direction of the linear relationship between two variables, and it can be computed using the formula:

[ r = \frac{n \sum xy - (\sum x)(\sum y)}{\sqrt{\left[n \sum x^2 - (\sum x)^2\right]\left[n \sum y^2 - (\sum y)^2\right]}} ]

Where:

• $x$ is the grade of the students
• $y$ is the number of pets
• $n$ is the number of data points

Please provide the data (the table of student grades and the number of pets) so that I can proceed with the calculation.

Let me know if you'd like help inputting the data!