document.write( "Question 1176943: It is believed that standardized test scores, such as SAT, is a good predictor of first-year college students' GPA. \r
\n" ); document.write( "\n" ); document.write( "x 1200 1120 1000 1420 1280 750 1100
\n" ); document.write( "y 3.2 2.5 2.7 3.5 2.9 2.2 2.3\r
\n" ); document.write( "\n" ); document.write( "Using the data shown above, predict a student's first-year GPA when the student scores a 1275 on the SAT. Round your final answer to two decimal places.\r
\n" ); document.write( "\n" ); document.write( "What percentage of variation in GPAs can be explained by students' SAT scores? Round your final answer to two decimal places.
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Algebra.Com's Answer #805195 by ewatrrr(24785)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "Hi\r\n" );
document.write( "Excel Spreadsheet Scatter Chart:\r\n" );
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document.write( "    X	y\r\n" );
document.write( "1200	3.2\r\n" );
document.write( "1120	2.5\r\n" );
document.write( "1000	2.7\r\n" );
document.write( "1420	3.5\r\n" );
document.write( "1280	2.9\r\n" );
document.write( "750	2.2\r\n" );
document.write( "1100	2.3\r\n" );
document.write( " .\r\n" );
document.write( " x= 1275,  y = 2.98\r\n" );
document.write( "R^2 = .68  \r\n" );
document.write( "  68% of variation in GPAs can be explained by students' SAT scores\r\n" );
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document.write( "Wish You the Best in your Studies.\r\n" );
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