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 (\(x_i\)) 10 20 34 38 50 54 60 70 72 80 86 92 96
Number of students (\(f_i\)) 1 2 3 3 2 1 3 3 2 2 3 4 1
 
The mean of the marks obtained by the students \(=\) ___________