document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1131007>Question 1131007</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Scores on the GRE&#8203; (Graduate Record&#8203; Examination) are normally distributed with a mean of 539 and a standard deviation of 113.  Use the 68 dash 95 dash 99.7 Rule to find the percentage of people taking the test who score below 426.\r<BR>\n" );
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document.write( "The percentage of people taking the test who score below 426 is what  _____ %? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #749072 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=749072\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> z=(x-mean)/sd<BR>\n" );
document.write( "=(426-539)/113=-1<BR>\n" );
document.write( "z<-1 occurs with probability 16% by this rule.<BR>\n" );
document.write( "68% in the center means 34% on each side, which means the tails are 16% on each side of abs (sd)=|1| </SPAN>\n" );
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