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golden mean
A position of balance between excess and deficiency.
quadratic mean
(mathematics) A type of average, calculated as the square root of the mean of the squares, ie. Q=√x_1²+x_2²+...+x_n²/n.
harmonic mean
(mathematics) A type of measure of central tendency calculated as the reciprocal of the mean of the reciprocals, ie, H=n/1/x_1+1/x_2+⋯+1/x_n
contraharmonic mean
(mathematics) A type of average calculated as the arithmetic mean of the squares of the values divided by the arithmetic mean of the values, ie. C=(x_1²+x_2²+...+x_n²)/n/(x_1+x_2+...+x_n)/norC(x_1,x_2,...,x_n)=x_1²+x_2²+...+x_n²/x_1+x_2+...+x_n
mean standard
The mean absolute deviation. / A commonly accepted standard or value.
population mean
(statistics) The mean (usually arithmetic, but possibly geometric) of all members of a population or all possible values from which a sample can be taken, as opposed to a sample mean.
absolute mean
(mathematics) The mean of the absolute magnitude of a function that has both positive and negative values.
regressions to the mean
mean standards
plural of mean standard
mean motions
plural of mean motion
