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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
means of grace
(Christianity, theology) a means by which God gives grace, usually considered to include both word and sacrament, and often other ways as well
means business
Third-person singular simple present indicative form of mean business
mean standard
The mean absolute deviation. / A commonly accepted standard or value.
quadratic means
plural of quadratic mean
harmonic means
plural of harmonic mean
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.
