Question

find the median of the following data.
Marks No.of students

0-9 3
10 - 19 5
20-29 8
30-39 9
40-49 13
50-59 6


​

Answer 1

first arranging data in ascending order

3,5,6,8,9,13

total number 6 which is even number

(n+1)/2th and n/2

(6+1)/2 and 6/2 i.e.3rd and 4 th term

median =6+8/2

=14/2=7

7 is median of following data