Question

Seventeen candidates appeared in an examination. The marks of the candidates who failed in the examination are 10, 9, 6, 7, 8, 8, 7, 5, 4, 6. The median of marks of all seventeen candidates is
1. 6
2. 7
3. 9
4. None of the above

Answer 1

Correct Answer - Option 3 : 9

Given 

The marks of the candidates who failed in exam are 10, 9, 6, 7, 8, 8, 7, 5, 4, 6 

Formula Used 

median for odd terms = n+1/2

Calculation

⇒ median of 17 terms = 17+1/2

⇒ 18/2

⇒ 9th term

⇒ now arrange the following terms in ascending order

⇒ 4, 5 ,6 , 6, 7, 7, 8, 8, 9, 10

∴  the median is 9