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Mathematics, 24.03.2021 21:20, Julianhooks
The slope of the least squares regression line is given by
where r is the correlation coefficient, sx is the standard deviation of the X‑values, and sy is the standard deviation of the Y‑values. If r = 0.25, sx = 2, and sy = 5, then how much should we expect Y to decrease for every one unit of increase in X?
A) 0.625 units
B) 0.25 units
C) 1.5 units
D) 2.5 units
E) 0.1 units
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Answers: 2
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The slope of the least squares regression line is given by
where r is the correlation coefficient,...
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