The marks obtained by 30 students of Class X of a certain school in a Mathematics paper consisting of \(100\) marks are presented in table below. Find the mean of the marks obtained by the students.
| Marks obtained (\(x_i\)) | 15 | 20 | 32 | 38 | 50 | 54 | 58 | 70 | 72 | 80 | 86 | 90 | 95 |
| Number of students (\(f_i\)) | 3 | 2 | 2 | 3 | 2 | 2 | 3 | 4 | 2 | 1 | 2 | 3 | 1 |
The mean of the marks obtained by the students \(=\) ___________