document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1088168>Question 1088168</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The Standard Deviation of a distribution of 100 values was Rs. 2. If the sum of squares of actual values was Rs. 3,600, what was the mean of this distribution?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #702626 by </B><A HREF=/tutors/aboutme.mpl?userid=Mathtutoronline><B>Mathtutoronline(1)</B></A><img src=\"/images/stars/iconNewId_16x16.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Mathtutoronline><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=702626\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Standard-+deviation+=+sqrt%28%28Sum+of+squares%2FN%29-%28Mean%5E2%29%29 ALIGN=MIDDLE  ALT=\"Standard-+deviation+=+sqrt%28%28Sum+of+squares%2FN%29-%28Mean%5E2%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Here: \r<BR>\n" );
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document.write( "Standard deviation= 2<BR>\n" );
document.write( "Sum of squares= 3600<BR>\n" );
document.write( "Total numbers=N=100<BR>\n" );
document.write( "To find: Mean?\r<BR>\n" );
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document.write( "Putting values in formula:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2+=+sqrt%28%283600%2F100%29-%28Mean%5E2%29%29 ALIGN=MIDDLE  ALT=\"2+=+sqrt%28%283600%2F100%29-%28Mean%5E2%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Squaring both sides:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4+=+%28%283600%2F100%29-%28Mean%5E2%29%29 ALIGN=MIDDLE  ALT=\"4+=+%28%283600%2F100%29-%28Mean%5E2%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Simplifying \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4+=+%28%2836%29-%28Mean%5E2%29%29 ALIGN=MIDDLE  ALT=\"4+=+%28%2836%29-%28Mean%5E2%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Mean%5E2+=+%28%2836%29-%284%29%29 ALIGN=MIDDLE  ALT=\"Mean%5E2+=+%28%2836%29-%284%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Mean%5E2+=+%2832%29 ALIGN=MIDDLE  ALT=\"Mean%5E2+=+%2832%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Mean+=+%28sqrt%2832%29%29 ALIGN=MIDDLE  ALT=\"Mean+=+%28sqrt%2832%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Mean+=+%285.6568%29 ALIGN=MIDDLE  ALT=\"Mean+=+%285.6568%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );