linear regression

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Noun1.linear regression - the relation between variables when the regression equation is linear: e.g., y = ax + b
statistics - a branch of applied mathematics concerned with the collection and interpretation of quantitative data and the use of probability theory to estimate population parameters
regression toward the mean, simple regression, statistical regression, regression - the relation between selected values of x and observed values of y (from which the most probable value of y can be predicted for any value of x)
regression coefficient - 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
References in periodicals archive ?
001) Variance explained Parameter Line of best fit (%) [Na.
On top of the data dots I have superimposed a line of best fit.
Phase I indicates the withdrawal of the parasympathetic nervous system at the onset of exercise, which was identified with a logarithmic line of best fit ([r.
A line of best fit was then graphed to better illustrate the trend of dichotomous accuracy across the spectrum of cut-off years.
If the regression curve is linear, the slope of the line of best fit is the initial velocity of the reaction.
ZKM trades below the line of best fit, clearly demonstrating, in our opinion, the market's belief that it will be able to continue enhancing its 2P reserves at the rate seen since the change of control in 2004.
By focusing on features of the graph, students become aware of the meaning of random variation, trend and straight line of best fit.
As a result, the line of best fit produced in regression equations is often fraught with misspecification issues and is likely to miss more complex relationships underlying the data.