Mathematics
Mathematics
Problem
The table shows the distribution of daily study time of a set of students.| Study time (minutes) | Frequency |
|---|---|
| 10–20 | 3 |
| 20–30 | x |
| 30–40 | 12 |
| 40–50 | 7 |
| 50–60 | 3 |
Mathematics
| Study time (minutes) | Frequency |
|---|---|
| 10–20 | 3 |
| 20–30 | x |
| 30–40 | 12 |
| 40–50 | 7 |
| 50–60 | 3 |