Which of these choices is true for the slope of the least-squares regression line? It is unitless. The square of the slope equals the fraction of the variation in the response variable that is explained by the explanatory variable. It has the same sign as the correlation.
Which of these choices is true for the slope of the least-squares regression line? It is unitless. The square of the slope equals the fraction of the variation in the response variable that is explained by the explanatory variable. It has the same sign as the correlation.
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter7: Distance And Approximation
Section7.3: Least Squares Approximation
Problem 31EQ
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Transcribed Image Text:Which of these choices is true for the slope of the least-squares regression line?
It is unitless.
The
square
of the slope equals the fraction of the variation in the response variable that is explained by the
explanatory variable.
It has the same sign as the correlation.
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