(i) Define cumulative frequency for a grouped data distribution. (ii) State one…
MATHEMATICS · Subjective · CBSE · Mathematics · Statistics · Statistics
Problem
(i) Define cumulative frequency for a grouped data distribution. (ii) State one difference between a “less than” cumulative frequency table and a “more than” cumulative frequency table. (iii) The marks obtained by 40 students in a unit test are grouped as follows:| Class interval (marks) | Frequency |
|---|---|
| 0 – 10 | 4 |
| 10 – 20 | 9 |
| 20 – 30 | 13 |
| 30 – 40 | 10 |
| 40 – 50 | 4 |