document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=181894>Question 181894</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hello, I am having some trouble with a question for my statistics homework, I hope someone would be able to help me out. I would be very grateful.\r<BR>\n" );
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document.write( " Human pregnancy lengths are bell-shaped with a mean of 265 days and a standard deviation of 10 days. Use the Empirical Rule to determine the percent of women whose pregnancies are between 255 and 275 days.<BR>\n" );
document.write( " Using the  Empirical Rule <BR>\n" );
document.write( "1.About 68% of the data lie within 1 standard deviation of the mean.\r<BR>\n" );
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document.write( "2.About 95% of the data lie within 2 standard deviations of the mean.<BR>\n" );
document.write( "3.About 99.7% of the data lie within 3 standard deviations of the mean.\r<BR>\n" );
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document.write( "I am stuck. I am very grateful for you using your spare time to help me out . Thank you in advance.<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #136529 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=136529\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Human pregnancy lengths are bell-shaped with a mean of 265 days and a standard deviation of 10 days. Use the Empirical Rule to determine the percent of women whose pregnancies are between 255 and 275 days.<BR>\n" );
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document.write( "255 is one standard deviation below 265.<BR>\n" );
document.write( "275 is one standard deviation above 265<BR>\n" );
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document.write( "The percentage of a normally distributed population that lies<BR>\n" );
document.write( "within one standard deviation of the mean is 68%<BR>\n" );
document.write( "Your answer: 68%<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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document.write( "Using the Empirical Rule <BR>\n" );
document.write( "1.About 68% of the data lie within 1 standard deviation of the mean. <BR>\n" );
document.write( "2.About 95% of the data lie within 2 standard deviations of the mean.<BR>\n" );
document.write( "3.About 99.7% of the data lie within 3 standard deviations of the mean. <BR>\n" );
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