Definition: The (arithmetic) mean of some values is the sum of
all values divided by the number of values. See also median,
mode, midrange. Note: The mean of 1, 1, 3, 50, and 60 is 23. (1
+ 1 + 3 + 50 + 60) / 5 = 23. If you have suggestions,
corrections, or comments, please get in touch with Paul E.
Black. Entry modified 15 March 2006. HTML page formatted Fri Mar
25 16:20:34 2011. Cite this as: Paul E. Black, "mean", in
Dictionary of Algorithms and Data Structures [online], Paul E.
Black, ed., U.S. National Institute of Standards and Technology.
15 March 2006. (accessed TODAY) Available from:
http://www.nist.gov/dads/HTML/mean.html