The marks (out of 60) obtained by 120 students are grouped as follows: | Class…
MATHEMATICS · Subjective · GCSE · Mathematics · Statistics · Statistics
Problem
The marks (out of 60) obtained by 120 students are grouped as follows:| Class interval | 0–10 | 10–20 | 20–30 | 30–40 | 40–50 | 50–60 |
|---|---|---|---|---|---|---|
| Frequency | 9 | 16 | 25 | 30 | 24 | 16 |