The marks of 15 students in an examination are:
25, 19, 17, 24, 23, 29, 31, 40, 19, 20, 22, 26, 17, 35, 21.
Find the median score.
By arranging the data in ascending order
We have;
17, 17, 19, 19, 20, 21, 22, 23, 24, 25, 26, 29, 31, 35, 40
N = 15 (odd number)
Median = value of the 
term
= 
= value of 8th term
= 23
Hence the Median marks are 23.
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