| Row | The first variable | The second variable | Correlation Coefficient | Level of significance |
| 1 | The tangibles quality | The literacy rate | −0.161 | 0.020 |
| 2 | The tangibles quality | Income rate | −0.142 | 0.030 |
| 3 | The Responsibility quality | Income rate | −0.245 | 0.000 |
| 4 | The accountability quality | Income rate | −0.157 | 0.020 |
| 5 | The empathy quality | Income rate | −0.256 | 0.000 |
| 6 | The empathy quality | The literacy rate | −0.243 | 0.000 |
| 7 | The overall quality of service | The literacy rate | −0.176 | 0.010 |