The age of some students is given in years as 12, 13, 16, 18,14, 19, 13, 17, 15 and 11. The median age (in years) of the students is:
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 14.5.
Arrange the ages in ascending order: 11, 12, 13, 13, 14, 15, 16, 17, 18, 19
There are 10 values (an even number of values).
The median will be the average of the two middle values.
In this ordered list, the middle values are the 5th and 6th values, which are 14 and 15.
Median = (14 + 15)/2 = 29/2 = 14.5
Therefore, the median age of the students is 14.5 years.