Question

The table below summarises the number of books in some students' schoolbags.

Number of books Frequency
1 3
2 5
3 12
4 25
5 4
6 1
How many students are included in this data set?

Answer 1

Total number of students = 50 students.

Explanation:

Total number of books = number of books * frequency

1 * 3 = 3

2 * 5 = 10

3 * 12 = 36

4 * 25 = 100

5 * 4 = 20

6 * 1 = 6

Total number of books = 3 + 10 + 36 + 100 + 20 + 6

Total number of books = 175 books.

Now, to find the total number of students;

Total number of students = summation of frequency

Total number of students = 3 + 5 + 12 + 25 + 4 + 1

Total number of students = 50 students.