document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1008287>Question 1008287</A>: <I><SPAN STYLE=\"word-break: break-all;\"> In the formula for variance of values in a sample &#8721;(x-xbar)^2/n-1, what is required for the variance to equal zero?\r<BR>\n" );
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document.write( "The Empirical Rule indicates that we can expect to find what proportion of the sample included within + or - 2 sd? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #624021 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=624021\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  In the formula for variance of values in a sample &#8721;(x-xbar)^2/n-1, what is required for the variance to equal zero?<BR>\n" );
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document.write( "Every value of x is the same, so x = xbar<BR>\n" );
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document.write( "The Empirical Rule indicates that we can expect to find what proportion of the sample included within + or - 2 s<BR>\n" );
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document.write( "Ans:: 68% of the data<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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