For an odd number of data how is the median computed?

For an odd number of data values, the median is the middle number, the [(n+1)/2]th number

i.e. for 7 data values, (7 +1)/ 2 = 4, and the 4th is the middle value, or median.

*For an even number of values, the median is the mean of the two middle numbers,

i.e. one-half the sum of the two middle values (add n/2nd value and n/2+1st values and divide by 2).

Examples:

Median of 1, 3, 2 reordered as 1, 2, 3 = median 2

Median of 6, 5, 3, 1 reordered as 1, 3, 5, 6 = median 4 (3+5 divided by 2)