
 PlanetMath: arithmetic mean 
  The arithmetic mean is what is commonly called the average of the numbers. 
  See Also: geometric mean, harmonic mean, arithmeticgeometricharmonic means inequality, general means inequality, weighted power mean, power mean, geometric distribution, rootmeansquare, proof of general means inequality, proof of arithmeticgeometricharmonic means inequality, derivation of geometric mean as the limit of the power mean, mean, a prime theorem of a convergent sequence 
  This is version 8 of arithmetic mean, born on 20011020, modified 20061111. 
 planetmath.org /encyclopedia/ArithmeticMean.html (181 words) 
