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.
The 'Mean' (Average) is 18.75. (Often rounded to 19) The Median is the 'middle value' in your list. When the totals of the list are odd, the median is the middle entry in the list after sorting the list into increasing order.
Mean: It can be defined as the sum total of all the observations divided by the number of observations. ( Note :- the observations have to be quantitative and not qualitative) Median: If the data is arranged in the increasing or decreasing order then the middlemost value of the data is known as the median.