A grouped data set is given below
MATHEMATICS · Subjective · CBSE · Mathematics · Statistics · Statistics
Problem
A grouped data set is given below. The total number of observations is 60 and the mean of the distribution is 30.| Class interval | 0–10 | 10–20 | 20–30 | 30–40 | 40–50 |
|---|---|---|---|---|---|
| Frequency | 6 | a | 18 | b | 8 |