document.write( "Question 1041574: The hours a college freshman spend studying each week is usually distributed with a mean of 8 hours and a standard deviation of 5.5 hours. Determine the % of students who spend between 2.5 and 19 hours studying each week?\r
\n" ); document.write( "\n" ); document.write( "A.) 34%
\n" ); document.write( "B.) 68%
\n" ); document.write( "C.) 47.5%
\n" ); document.write( "D.) 81.5%
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Algebra.Com's Answer #656678 by robertb(5830)\"\" \"About 
You can put this solution on YOUR website!
D.) 81.5%.\r
\n" ); document.write( "\n" ); document.write( "Hint: Use the empirical rule.
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