Median

1. Line your numbers up in order, from smallest to largest.
2. If you have an odd number of values, the median is the one in the middle. If you have $n$ numbers, the middle number is at position $(n+1)/2$.
3. If you have an even number of values, get the median by adding the two middle ones together and dividing by 2. You can find the midpoint by calculating $(n+1)/2$. The two middle numbers are on either side of this point.

Sources: 1