To find the correlation coefficient \( r \) for the given data points, we can use the formula for Pearson's correlation coefficient or utilize a tool like GeoGebra or a statistics calculator.
For the provided data points:
- \( (5, 22) \)
- \( (6, 29) \)
- \( (7, 28) \)
- \( (8, 31) \)
- \( (9, 37) \)
Using technology to compute the correlation coefficient, we find that \( r \approx 0.94 \).
Thus, rounding to two decimal places, the correlation coefficient is:
0.94