The students newly joining a school for the academic year \(2021\) to \(2022\) of various classes is given below:
 
Class(in grade) Number of students
Below \(2\) 21
\(2 - 4\) 15
\(4 - 6\) 41
\(6 - 8\) 59
\(8 - 10\) 23
\(10 - 12\) 11
 
1. The class interval(grade) having the maximum number of students is
 
2. The class mark of the class preceding the modal class is ___________.
 
3. The mode is ___________.
 
4. How many students newly joined the school below grade 2?
 
5. The frequency of the class succeeding the modal class is _____________.