document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1011543>Question 1011543</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The lifetimes of projector bulbs of a particular type are normally distributed with a mean of 470 hours and a standard deviation of 15 hours. What percentage of the bulbs has lifetimes that lie within 2 standard deviations of the mean on either side?\r<BR>\n" );
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document.write( "Apply the 68-95-99.7 rule to this question.\r<BR>\n" );
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document.write( "  A. 68% 	<BR>\n" );
document.write( "  B. 99.7% 	<BR>\n" );
document.write( "  C. 95% 	<BR>\n" );
document.write( "  D. 100% </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #627220 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52851)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ikleyn><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=ikleyn><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=627220\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .<BR>\n" );
document.write( "Stop flooding the forum!\r<BR>\n" );
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document.write( " </SPAN>\n" );
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