Median Formula: The median is the middle of a group of numbers. It is a simple way to represent a lot of data with just one number. To find it, you put the numbers in order and pick the middle one. In ...

The mean is the most commonly used measure of average. To find the mean of a list of numbers, add them all together and divide by how many numbers there are: \(\text{mean} = \frac{\text{sum of all the ...