document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1081378>Question 1081378</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The length of human pregnancies varies normally with a mean of 266 days and a standard deviation of 16 days.<BR>\n" );
document.write( "What percentage of pregnancies last longer than 298 days?<BR>\n" );
document.write( "	.3%<BR>\n" );
document.write( "	2.5%<BR>\n" );
document.write( "	5%<BR>\n" );
document.write( "	.15%<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #695411 by </B><A HREF=/tutors/aboutme.mpl?userid=rothauserc><B>rothauserc(4718)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rothauserc><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/cgi-bin/show-face.mpl?user=rothauserc><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=695411\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Probability (P) ( X > 298 ) = 1 - P ( X < 298 )<BR>\n" );
document.write( ":<BR>\n" );
document.write( "z-score = (298 - 266) / 16 = 2<BR>\n" );
document.write( ":<BR>\n" );
document.write( "P associated with z-score of 2 is 0.9772<BR>\n" );
document.write( ":<BR>\n" );
document.write( "******************************************<BR>\n" );
document.write( "P ( X > 298 ) = 1 - 0.9772 = 0.0228 = 2.3%<BR>\n" );
document.write( "******************************************<BR>\n" );
document.write( ":<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );