A Convention
If the set of data are represented by a letter, then the mean is represented by that letter with a bar across its top.
Eleos, in Greek mythology, personifies compassion. He is represented as a child - of Erebus who represented darkness, and Nyx who represented night.
Well represented.
Five is represented by the v. Ones are represented with Is. Add them together and you get 8.
the head on the west represented Rome and the head on the east represented Constantinople
P is represented by Papa.
it gives you the adverage of all data represented
The number 456 can be represented by the Roman numeral CDLVI
DElta means "Change" delta can be represented by a triangle
The Black Land represented life to the Ancient Egyptians
In Roman numerals one is represented by I. In this case it would be 3.
Standard error is random error, represented by a standard deviation. Sampling error is systematic error, represented by a bias in the mean.