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.
Definition of Median: The median of a data set is the middle number when the set is sorted in numerical order. Since there was an odd number of data points above, going to the center to find 9 was easy. In an even-numbered data set, you take the mean of the middle two numbers.