# Coefficients

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## Coefficients

in statistics, qualitative indexes expressed in relative quantities, that is, factors representing the results of comparisons of the dimensions of heterogeneous or homogeneous interrelated socioeconomic phenomena.

In statistics, coefficients can be used to describe (1) the speed of development of some socioeconomic phenomenon; the dynamic coefficient, as it is called, shows how many times greater a quantity is in the given period than it was in some earlier periods; (2) the frequency of occurrence of the phenomenon in a certain environment—for example, the birth rate coefficient and the coefficient of work force turnover; (3) the degree of utilization of labor, physical, or monetary resources—for example, the coefficient of extensive (over time) or intensive (by capacity) equipment load, the coefficient of materials use, and all efficiency factors; (4) coordination—that is, the interdependence of qualitatively different phenomena, including the coefficient of population density and the correlation coefficient; and (5) variation (fluctuation) of the magnitudes of a characteristic—for example, rhythm coefficients and variation factors.

Coefficients are expressed in percentages, per thousand, and as a ratio to one. It should be noted that not every relative quantity is a coefficient; for example, the relative share is considered a proportion.

G. I. BAKLANOV

References in periodicals archive ?
Lavergnat, "Comparison of Luebbers' and Maliuzhinets' wedge diffraction coefficients in urban channel modelling," Progress In Electromagnetics Research, vol.
Moreira, "Heuristic UTD coefficients for radiowave coverage prediction in a urban scenario," in 2015 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC), Porto de Galinhas, Brazil, November 2015.
In order to find the vector X of the N unknown coefficients which makes all components of the residual vector R equal to zero, an initial estimate for the vector X is selected and iteratively refined by applying the Newton's corrector equation:
Results showed that the diamond coatings give lower friction coefficient values than that of the steel tribopair.
Robust coefficients alpha and omega and confidence intervals with outlying observations and missing data: methods and software.
2017), and the optimization of the cutting tool structure (McKenzie 1991) are commonly used to reduce the coefficient of friction.
It was found that this trend at higher speed and outlet flow coefficients can be addressed by using impeller inlet velocity relative to the rotating reference frame of the blade instead of the stationary reference frame.
Where [TYM.sub.i] is the fixed test-year-month effect i; [b.sub.jm] is the mth fixed regression coefficient specific to parity; (one level for the first lactation, and four levels each for the second through fifth lactations); [u.sub.km] and [p.sub.km] are mth RR coefficients specific to cow k for AG and PE effects, respectively; w[([t.sub.kl]).sub.m] is a covariate associated with DIM [t.sub.kl] for TD record l of cow k; and [e.sub.ijkl] is a random residual effect associated with Y1.
Multiple attribute decision making method using correlation coefficients of normal neutrosophic sets.
where A and B are the Forchheimer coefficients describing pressure losses due to viscous and inertial dissipation mechanisms, respectively [2, 18].
Since the S coefficients are geometric-free, they are less affected by geometric attacks like rotation and scaling.
Coherence of the schedule of the operation (coefficient 1)9

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