A sociologist conducted a structured observation study to record the primary activity of students in a university library common room during peak hours. She recorded the primary behaviour of 100 students observed over a two-hour period.
Table 1: Primary activities observed in the library common room
| Primary Activity | Using laptop/tablet | Reading/writing on paper | Talking/social interaction | Using smartphone (recreational) | Resting/sleeping | Total |
|---|---|---|---|---|---|---|
| Frequency | 40 | 25 | 20 | 10 | 5 | 100 |
Sketch a pie chart to show the data recorded in Table 1.