The following table shows the number of students and the time they utilized daily for their studies. Find the mean time spent by students for their studies by direct method.
The following table shows the number of students and the time they utilized daily for their studies. Find the mean time spent by students for their studies by direct method.
| Time (hrs.) | 0–2 | 2–4 | 4–6 | 6–8 | 8–10 |
|---|---|---|---|---|---|
| No. of students | 7 | 18 | 12 | 10 | 3 |