document.write( "Question 142135: Scores on the Scholastic Aptitude Test (SAT), a well known test taken by high school students are often converted to standardized scores or z-scores. The formula for determining a z-score on a mathematical portion of the SAT is given by z=(x-518)/115
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\n" ); document.write( "\n" ); document.write( "where x is an individual score on the test. The value 518 is the national average score on the test, whereas 115 is a measure of how spread out the scores are.\r
\n" ); document.write( "\n" ); document.write( "1. Solve this formula for x in terms of z.
\n" ); document.write( "2. If your score is 2.2, what was your score on the test? \n" ); document.write( "

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The formula for determining a z-score on a mathematical portion of the SAT is given by z=(x-518)/115 where x is an individual score on the test. The value 518 is the national average score on the test, whereas 115 is a measure of how spread out the scores are.\r
\n" ); document.write( "\n" ); document.write( "1. Solve this formula for x in terms of z.
\n" ); document.write( "x-518 = 115z
\n" ); document.write( "x = 115z+518
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\n" ); document.write( "\n" ); document.write( "2. If your z-score is 2.2, what was your x-score on the test?
\n" ); document.write( "x = 115*2.2 +518
\n" ); document.write( "x = 771
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H. \n" ); document.write( "

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