Question

4. Find out Mean and Median of the following data.
Marks
| 0 – 10 | 10 - 20|20 - 30|30 - 40|40 - 50 | 50 - 60|60 - 70|70 - 80
Students
|| 5|10|20|40|30|20|10|4​

Answer 1

Here Mean Value Only Calculated

By Direct Method