Question

8. Convert cumulative frequency series into exclusive series.

Marks
No. of students
Less than 10
3
Less than 15

Less than 20
Less than 25
Less than 30 30
no of students
1. 3
2. 11
3. 20
4. 24
5. 28​

Answer 1

Explanation:

In exclusive series the upper limit is excluded

for eg: mark scored by students from 10-15 is 3

this states that students from 10 to 14 only will be included 15 the upper limit should be excluded