document.write( "Question 323967: How do you write a prediction equation for data points shown in a scatter plot? \n" ); document.write( "

Algebra.Com's Answer #231842 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
Same as you would for a line, although the symbols are different,
\n" ); document.write( " $\"y=bx%2Ba\"$
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\n" ); document.write( " $\"b=SSXY%2FSSXX\"$
\n" ); document.write( " $\"a=yave-b%2Axave\"$
\n" ); document.write( "where $\"xave\"$ and $\"yave\"$ are the means of the input data, $\"SSXX\"$ are the sum of the squares of the x deviations, $\"SSXY\"$ are the products of the x and y square deviation terms.
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