document.write( "Question 1167860: The physical plant at the main campus of a large state university recieves daily requests to replace florecent lightbulbs. The distribution of the number of daily requests is bell-shaped and has a mean of 49 and a standard deviation of 5. Using the 68-95-99.7 rule, what is the approximate percentage of lightbulb replacement requests numbering between 44 and 49?
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Algebra.Com's Answer #851162 by ikleyn(52787) $\"\"$ $\"About$

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\n" ); document.write( "The physical plant at the main campus of a large state university receives daily requests
\n" ); document.write( "to replace florescent lightbulbs. The distribution of the number of daily requests is bell-shaped
\n" ); document.write( "and has a mean of 49 and a standard deviation of 5. Using the 68-95-99.7 rule,
\n" ); document.write( "what is the approximate percentage of lightbulb replacement requests numbering between 44 and 49?
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document.write( "Notice that in this problem, 44 is 5 units, or exactly one standard deviation, below \r\n" );
document.write( "the mean of 49.\r\n" );
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document.write( "Therefore, the approximate percentage of lightbulb replacement requests numbering between \r\n" );
document.write( "44 and 49 is\r\n" );
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document.write( "     = 34%.    ANSWER\r\n" );
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