In statistics, simple linear regression is a linear regression model with a single explanatory variable. The adjective simple refers to the fact that the outcome variable is related to a single predictor. The remainder of the article assumes an ordinary least squares regression. In this case, the slope of the fitted line is equal to the correlation between y and x corrected by the ratio of standard deviations of these variables. The intercept of the fitted line is such that it passes through the center of mass (x, y) of the data points.

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• In statistics, simple linear regression is a linear regression model with a single explanatory variable. The adjective simple refers to the fact that the outcome variable is related to a single predictor. It is common to make the additional hypothesis that the ordinary least squares method should be used to minimize the residuals. Under this hypothesis, simple linear regression fits a straight line through the set of n points in such a way that makes the sum of squared residuals of the model (that is, vertical distances between the points of the data set and the fitted line) as small as possible. Other regression methods besides the simple ordinary least squares (OLS) also exist. In particular, when one wants to do regression by eye, one usually tends to draw a slightly steeper line, closer to the one produced by the total least squares method. This occurs because it is more natural for one's mind to consider the orthogonal distances from the observations to the regression line, rather than the vertical ones as OLS method does. The remainder of the article assumes an ordinary least squares regression. In this case, the slope of the fitted line is equal to the correlation between y and x corrected by the ratio of standard deviations of these variables. The intercept of the fitted line is such that it passes through the center of mass (x, y) of the data points. (en)
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• 2593771 (xsd:integer)
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• 745040214 (xsd:integer)
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• October 2015
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• where?
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http://purl.org/linguistics/gold/hypernym
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• In statistics, simple linear regression is a linear regression model with a single explanatory variable. The adjective simple refers to the fact that the outcome variable is related to a single predictor. The remainder of the article assumes an ordinary least squares regression. In this case, the slope of the fitted line is equal to the correlation between y and x corrected by the ratio of standard deviations of these variables. The intercept of the fitted line is such that it passes through the center of mass (x, y) of the data points. (en)
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• Simple linear regression (en)
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