CBSE Class 10 Maths (Standard) 2019 · Paper 30/3/1 · Question 21
A class teacher has the following absentee record of students of a class for the whole term. Find the mean number of days a student was absent.
| Number of days | Number of students |
|---|---|
| 0 - 6 | 10 |
| 6 - 12 | 11 |
| 12 - 18 | 7 |
| 18 - 24 | 4 |
| 24 - 30 | 4 |
| 30 - 36 | 3 |
| 36 - 42 | 1 |
Answer
Mean days
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