regression coefficient

regression analysis

noun
Statistics. a procedure for determining a relationship between a dependent variable, as predicted success in college, and an independent variable, as a score on a scholastic aptitude test, for a given population. The relationship is expressed as an equation for a line (regres·sion·line) or curve (regres·sion·curve) in which any coefficient (regression coefficient) of the independent variable in the equation has been determined from a sample population.

Origin:
1945–50

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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WordNet
regression analysis

noun
the use of regression to make quantitative predictions of one variable from the values of another 
regression coefficient

noun
when the regression line is linear (y = ax + b) the regression coefficient is the constant (a) that represents the rate of change of one variable (y) as a function of changes in the other (x); it is the slope of the regression line 
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