Median of medians

Median of medians is a way of finding the middle number in a group of numbers. To do this, you first separate the numbers into groups of 5. For example, if you have 10 numbers, 10/5=2, so you would separate them into two groups of 5. Now, you find the middle number in each of the groups. These middle numbers are called medians. Finally, you find the middle number of all the medians. That is the median of medians.