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 ...

Averages are used all the time in finance, usually to justify performance (above average'). However, as an investor, youshould realise there are several ways to calculate an average.The three most ...

To get the median, put all of the numbers in a set in increasing numerical order. Count how many numbers there are in each set. This is shown here: If the number of items in a set is even, divide it ...