CBSE Class 10 Maths (Standard) 2024 · Paper 30(B) · Question 36
Student-teacher ratio expresses the relationship between the number of students enrolled in a school and the number of teachers employed by the school. This ratio is important for a number of reasons. It can be used as a tool to measure teachers' workload as well as the allocation of resources. A survey was conducted in 100 secondary schools of a state and the following frequency distribution table was prepared. Based on the above, answer the following questions :
| Number of students per Teacher | Number of Schools |
|---|---|
| 20 - 25 | 5 |
| 25 - 30 | 15 |
| 30 - 35 | 25 |
| 35 - 40 | 30 |
| 40 - 45 | 15 |
| 45 - 50 | 10 |
- (i)What is the lower limit of the median class?[1]
- (ii)What is the upper limit of the modal class?[1]
- (iii)(a)Find the median of the data.[2]
- (iii)(b)OR Find the mode of the data.[2]
Answer
(i) The lower limit of the median class is ; (ii) The upper limit of the modal class is ; (iii)(a) The median is ; (iii)(b) OR: The mode is .
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