document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=11681>Question 11681</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The lengths of pregnancies of humans are normally distributed with a mean of 268 days and a standard deviation of 15 days.  A baby is premature if it is born three weeks early.  What percentage of babies are born prematurely? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #6006 by </B><A HREF=/tutors/aboutme.mpl?userid=khwang><B>khwang(438)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=khwang><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=6006\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  3 weeks = 21 days.<BR>\n" );
document.write( " z =  -21/15 = -7/5.\r<BR>\n" );
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document.write( " From the table of normal distribution , the prob. is<BR>\n" );
document.write( " 0.08\r<BR>\n" );
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document.write( " Kenny </SPAN>\n" );
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