document.write( "Question 277438: If the correlation coefficient is 0.145, what is the sign of the slope of the regression line?
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document.write( "- 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? \n" );
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Algebra.Com's Answer #202016 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! If the correlation coefficient is 0.145, what is the sign of the slope of the regression line? \n" ); document.write( "The line has positive linear correlation so the slope is positive. \n" ); document.write( "--------------------- \n" ); document.write( " \n" ); document.write( "- 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? \n" ); document.write( "r = [(x-(x-bar))(y-(y-bar))/sxsy] \n" ); document.write( "---- \n" ); document.write( "r approaches 1 as the points of the scatter plot get closer to \n" ); document.write( "the regression line. \n" ); document.write( "--- \n" ); document.write( "r approaches 0 as the points of the scatter plot get further away \n" ); document.write( "from the regression line. \n" ); document.write( "--- \n" ); document.write( "Your Problem: \n" ); document.write( "Since r is approaching zero the points are moving away from the regression line. \n" ); document.write( "======================== \n" ); document.write( "cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |