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Question
Construct the frequency distribution table from the following cumulative frequency table:
| Ages | No. of students |
| Below 4 | 0 |
| Below 7 | 85 |
| Below 10 | 140 |
| Below 13 | 243 |
| Below 16 | 300 |
(i) State the number of students in the age group 10 - 13.
(ii) State the age-group which has the least number of students.
Solution
The frequency distribution table is
| C. I | c.f |
| 4 - 7 | 85 |
| 7 - 10 | 55 |
| 10 - 13 | 103 |
| 13 - 16 | 57 |
(i)The number of students in the age group is 10 -13 is 103
(ii)The age group which has the least number of students is 7 - 10
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