In a science test, the following marks were obtained by students. Arrange these marks in a tabular form using tally marks.
Find how many students obtained marks below .
Marks | Frequency | Tally marks |
---|---|---|
1 | 3 | |
2 | 2 | |
3 | 3 | |
4 | 2 | |
5 | 5 | |
6 | 4 | |
7 | 5 | |
8 | 3 | |
9 | 3 |
According to the above table, the total number of students who obtained marks below is .