Question 277438
If the correlation coefficient is 0.145, what is the sign of the slope of the regression line?
The line has positive linear correlation so the slope is positive.
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- As the correlation coefficient decreases from 0.84 to 0.79, do the points of the scatter plot move toward the regression line, or away from it?
r = [(x-(x-bar))(y-(y-bar))/sxsy]
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r approaches 1 as the points of the scatter plot get closer to 
the regression line.
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r approaches 0 as the points of the scatter plot get further away
from the regression line.
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Your Problem:
Since r is approaching zero the points are moving away from the regression line.
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cheers,
Stan H.