For the data below two class frequencies are missing
MATHEMATICS · Subjective · CBSE · Mathematics · Statistics · Statistics
Problem
For the data below two class frequencies are missing.| Class interval | 0–10 | 10–20 | 20–30 | 30–40 | 40–50 |
|---|---|---|---|---|---|
| Frequency | a | 12 | b | 9 | 7 |