Mathematics
Mathematics
Problem
The number of books read by each student in a reading week is summarised below. One frequency value is missing, but the total number of students is known.| Number of books | Frequency |
|---|---|
| 0 | 2 |
| 1 | 5 |
| 2 | ? |
| 3 | 7 |
| 4 | 4 |
| 5 | 2 |
Mathematics
| Number of books | Frequency |
|---|---|
| 0 | 2 |
| 1 | 5 |
| 2 | ? |
| 3 | 7 |
| 4 | 4 |
| 5 | 2 |