To complete the following procedure, you must be logged on as a member of the Domain Admins security group. On a computer running Windows Small Business Server 2003, click Start, and then click Server Management.
How to Find the Mean. The mean is the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are. In other words it is the sum divided by the count.
In math, median is used to refer to the middle number in a group. To determine the median, you order the numbers from (lowest) to (highest) and find the middle number in the series. If there are two middle numbers, then add them together and divide by two to find the mean.