# mean+proportion

11

**mean proportional**— noun Etymology: mean (VI) + proportional, adjective 1. : geometric mean 2. : mean 1d(3) * * * Math. (between two numbers a and b …12

**proportion**— I. noun Etymology: Middle English proporcion, from Anglo French, from Latin proportion , proportio, from pro for + portion , portio portion more at for Date: 14th century 1. harmonious relation of parts to each other or to the whole ; balance,… …13

**mean proportional**— noun Date: 1571 geometric mean; especially the square root (as x) of the product of two numbers (as a and b) when expressed as the means of a proportion (as a/x = x/b) …14

**Divine proportion**— Nombre d or  Pour l’article homonyme, voir Nombre d or (astronomie).  La proportion définie par a et b est dite d extrême et de moyenne raison lorsque a e …15

**Golden mean (philosophy)**— In philosophy, especially that of Aristotle, the golden mean is the desirable middle between two extremes, one of excess and the other of deficiency.To the Greek mentality, it was an attribute of beauty. Both ancients and moderns realized that… …16

**Contraharmonic mean**— In mathematics, a contraharmonic mean is a function complementary to the harmonic mean. The contraharmonic mean is a special case of the Lehmer mean, L2. Contents 1 Definition 2 Properties 3 Explication …17

**Regression toward the mean**— In statistics, regression toward the mean (also known as regression to the mean) is the phenomenon that if a variable is extreme on its first measurement, it will tend to be closer to the average on a second measurement, and a fact that may… …18

**Arithmetical proportion**— Arithmetical Ar ith*met ic*al, a. Of or pertaining to arithmetic; according to the rules or method of arithmetic. [1913 Webster] {Arithmetical complement of a logarithm}. See {Logarithm}. {Arithmetical mean}. See {Mean}. {Arithmetical… …19

**Arithmetical mean**— Arithmetical Ar ith*met ic*al, a. Of or pertaining to arithmetic; according to the rules or method of arithmetic. [1913 Webster] {Arithmetical complement of a logarithm}. See {Logarithm}. {Arithmetical mean}. See {Mean}. {Arithmetical… …20

**Harmonical mean**— Harmonic Har*mon ic (h[aum]r*m[o^]n [i^]k), Harmonical Har*mon ic*al ( [i^]*kal), a. [L. harmonicus, Gr. armoniko s; cf. F. harmonique. See {Harmony}.] 1. Concordant; musical; consonant; as, harmonic sounds. [1913 Webster] Harmonic twang! of… …