document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=563426>Question 563426</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What is the variance and the standard deviation of the scores 51,55,61,62,68,71,71,73,81,82,87,89,92,94,95,100?\r<BR>\n" );
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document.write( "Can someone please help and show all work?<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 #364879 by </B><A HREF=/tutors/aboutme.mpl?userid=richard1234><B>richard1234(7193)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richard1234><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=richard1234><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=364879\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Note that\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE \sigma = \sqrt{\frac{\sum_{i=1}^n (x_i - \mu)^2}{n}}\">\r<BR>\n" );
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document.write( "and that variance is equal to the square of the standard deviation. The best method is simply to use a calculator to input the data values, and you should obtain\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE \sigma \approx 15.19\">\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE \sigma^2 \approx 230.8\"> </SPAN>\n" );
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