document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=745893>Question 745893</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The distribution of weights of a sample of 1,400 is symmetric and bell-shaped. According to Empirical Rule, what percent of the weights will lie<BR>\n" );
document.write( "a. Between x&#773;-2s and x&#773;+2s?<BR>\n" );
document.write( "b. Between x&#773; and x&#773;+2s? Below x&#773;-2s  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #454063 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=454063\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The distribution of weights of a sample of 1,400 is symmetric and bell-shaped. According to Empirical Rule, what percent of the weights will lie<BR>\n" );
document.write( "a. Between x&#773;-2s and x&#773;+2s?<BR>\n" );
document.write( "Ans: At least (1-(1/2)^2) = (1-0.25) = 0.75 = 75% of the data<BR>\n" );
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document.write( "b. Between x&#773; and x&#773;+2s? <BR>\n" );
document.write( "Ans: (1/2)0.75 = 37.5%<BR>\n" );
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document.write( "Below x&#773;-2s<BR>\n" );
document.write( "Ans: 0.5-0.375 = 12.5%<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. <BR>\n" );
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