Lognormal Distribution
The harmonic mean ( H ) of a lognormal distribution is
where μ is the arithmetic mean and σ2 is the variance of the distribution.
The harmonic and arithmetic means are related
where Cv is the coefficient of variation.
The geometric ( G ), arithmetic and harmonic means are related
Read more about this topic: Harmonic Mean
Famous quotes containing the word distribution:
“My topic for Army reunions ... this summer: How to prepare for war in time of peace. Not by fortifications, by navies, or by standing armies. But by policies which will add to the happiness and the comfort of all our people and which will tend to the distribution of intelligence [and] wealth equally among all. Our strength is a contented and intelligent community.”
—Rutherford Birchard Hayes (1822–1893)