The marks obtained by 13 students in an examination are 55, 65, 72, 94, 64, 68, 54, 62, 58, 75, 80, 82 and 60. Find the median.
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → 65
The median is the middle value after arranging the data in order. For an odd number \(n\) of values, it is the \(\displaystyle\frac{n+1}{2}\)th value.
In ascending order: 54, 55, 58, 60, 62, 64, 65, 68, 72, 75, 80, 82, 94
\(n=13\), so the median is the \(\displaystyle\frac{13+1}{2}=7\)th value
The 7th value is 65
The median is 65.