How many students were there in the class altogether? _____________

Arrange the following data in a table using tally marks.

$115, 117, 116, 114, 119, 115, 117, 116, 119, 117, 114, 119, 112, 115, 117, 115, 116; 117, 114, 112, 115, 117$

Which number has the lowest frequency? $\boxed{}$

Arrange the following data in a table using tally marks.

$115, 117, 116, 114, 119, 115, 117, 116, 119, 117, 114, 119, 112, 115, 117, 115, 116; 117, 114, 112, 115, 117$

Which number has the highest frequency? $\boxed{}$

Arrange the following data which shows age of $40$ students in a table using tally marks.

$\begin{array}{llllllllll}4& 8& 6& 8& 4& 5& 7& 4& 7& 4\end{array} \begin{array}{llllllllll}4& 7& 6& 4& 5& 7& 5& 8& 6& 8\end{array} \begin{array}{llllllllll}7& 6& 5& 4& 5& 5& 7& 4& 6& 7\end{array} \begin{array}{llllllllll}8& 4& 5& 6& 4& 4& 5& 6& 7& 7\end{array}$

How many students are of age $8$?

Arrange the following data which shows age of $40$ students in a table using tally marks.

$\begin{array}{llllllllll}4& 8& 6& 8& 4& 5& 7& 4& 7& 4\end{array} \begin{array}{llllllllll}4& 7& 6& 4& 5& 7& 5& 8& 6& 8\end{array} \begin{array}{llllllllll}7& 6& 5& 4& 5& 5& 7& 4& 6& 7\end{array} \begin{array}{llllllllll}8& 4& 5& 6& 4& 4& 5& 6& 7& 7\end{array}$

What is the age of maximum number of students?

Arrange the following data which shows age of $40$ students in a table using tally marks.

$\begin{array}{llllllllll}4& 8& 6& 8& 4& 5& 7& 4& 7& 4\end{array} \begin{array}{llllllllll}4& 7& 6& 4& 5& 7& 5& 8& 6& 8\end{array} \begin{array}{llllllllll}7& 6& 5& 4& 5& 5& 7& 4& 6& 7\end{array} \begin{array}{llllllllll}8& 4& 5& 6& 4& 4& 5& 6& 7& 7\end{array}$

What is the number of students between ages $4$ and $8$ (both exclusive)?

If    represents $2$ students, then

    represent _____ students.

If    represents $2$ students, then

    represent _____ students.

If    represents $2$ students, then

    represent _____ students.