document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1016869>Question 1016869</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I really need your help in solving this problem. I appreciate your time and efforts. Have a terrific day :) Here is the question:\r<BR>\n" );
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document.write( "Calculate SS variance, and Standard deviation for the following sample of \r<BR>\n" );
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document.write( "n = 4 scores: 3, 1, 1, 1,\r<BR>\n" );
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document.write( "(Note: the Computational formula works well with these scores.)\r<BR>\n" );
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document.write( "Yours,\r<BR>\n" );
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document.write( "Jay\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 #633249 by </B><A HREF=/tutors/aboutme.mpl?userid=rothauserc><B>rothauserc(4718)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rothauserc><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=rothauserc><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=633249\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The sum of squares(SS) is defined as the sum of (x - mean)^2 of all x<BR>\n" );
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document.write( "In our example the mean is (3 + 1 + 1 + 1) / 4 = 1.5<BR>\n" );
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document.write( "SS = (3 - 1.5)^2 + (1-1.5)^2 + (1-1.5)^2 + (1-1.5)^2 = 3<BR>\n" );
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document.write( "variance = SS / (n-1) = 3 / 3  = 1 where n = 4<BR>\n" );
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document.write( "std dev = square root(variance) = 1<BR>\n" );
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