document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1134242>Question 1134242</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The price-earnings (PE) ratios of a sample of stocks have a mean value of 12.25 and a standard deviation of 1.7. If the PE ratios have a bell shaped distribution, use the 68-95-99.7 Rule to estimate the percentage of PE ratios that fall between:\r<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 #751626 by </B><A HREF=/tutors/aboutme.mpl?userid=Glaviolette><B>Glaviolette(140)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Glaviolette><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=Glaviolette><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=751626\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I am not sure if there is part of the question missing or not, however, applying the 68-95-99.7 rule,\r<BR>\n" );
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document.write( "68% falls within 1 st dev = 12.25 - 1.7 and 12.25 + 1.7 or (10.55, 13.95)<BR>\n" );
document.write( "95% falls within 2 st dev = 12.25 - 2(1.7) and 12.25 + 2(1.7) or (8.85, 15.65)<BR>\n" );
document.write( "99.7% falls with 3 st dev = 12.25 - 3(1.7) and 12.25 + 3(1.7) or (7.15, 17.35) </SPAN>\n" );
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