document.write( "Question 830799: A mean score on a standardized test is 50 with a standard deviation of 10.
\n" ); document.write( "What percentile of scores falls between +1 and +2 standard deviations?
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Algebra.Com's Answer #500904 by Fombitz(32388)\"\" \"About 
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\"P%281s%29=0.84135\"
\n" ); document.write( "\"P%282s%29=0.97725\"
\n" ); document.write( "\"P%282s%29-P%281s%29=0.97725-0.84135=0.135905\"
\n" ); document.write( "13.5% of the scores fall between 1 and 2 standard deviations.
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