document.write( "Question 672219: A set of X and Y scores has Mx=4, SSx=10, MY=5, SSY=40, and SP=40. What is the
\n" ); document.write( "regression equation for predicting Y from X?\r
\n" ); document.write( "\n" ); document.write( "a, =0.25X-4
\n" ); document.write( "b, =4X+4
\n" ); document.write( "c, =X-6
\n" ); document.write( "d, =4X-11\r
\n" ); document.write( "\n" ); document.write( "If there is a negative correlation between X and Y then the regression equation, Y=bX+a
\n" ); document.write( "will have_____
\n" ); document.write( "a, b>0
\n" ); document.write( "b, b<0
\n" ); document.write( "c, a>0
\n" ); document.write( "d, a<0\r
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Algebra.Com's Answer #417841 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
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document.write( "Hi,
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document.write( "Mx=4,My=5, SSx=10,  SSy=40, and SP(Sum of Products) =40
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document.write( "Regression Line: y = bx + a
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document.write( " b = SP/SSx = 40/10 = 4 
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document.write( " a = My -bMx = 5 - 4•4 = -11
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document.write( "Regression Line is \r
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document.write( "negative correlation:  b < 0\r
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document.write( "Regression Line: y = bx + a
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document.write( "b =                                   
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document.write( "and  \n" );
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