document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=709390>Question 709390</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The following data lists the average monthly snowfall for January in 15 cities around the US:<BR>\n" );
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document.write( "40    44    43    15    22    29    38    22<BR>\n" );
document.write( "14    13    28    29    47    31    18<BR>\n" );
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document.write( "Find the mean, variance, and standard deviation. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #436574 by </B><A HREF=/tutors/aboutme.mpl?userid=vheroli><B>vheroli(126)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=vheroli><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=vheroli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=436574\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Solution for Mean:<BR>\n" );
document.write( "Add all the numbers and then divide by 15<BR>\n" );
document.write( "40 44 43 15 22 29 38 22<BR>\n" );
document.write( "14 13 28 29 47 31 18\r<BR>\n" );
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document.write( "Mean= 28.87\r<BR>\n" );
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document.write( "Solution for standard deviation:<BR>\n" );
document.write( "Use the formula for standard deviation<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+sqrt%28sum+%28%28X%5Bi%5D-mean%29%5E2%2C+i=1%2C+N%29%2FN%29 ALIGN=MIDDLE  ALT=\"+sqrt%28sum+%28%28X%5Bi%5D-mean%29%5E2%2C+i=1%2C+N%29%2FN%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+sqrt%28sum+%28%28X%5Bi%5D-28.87%29%5E2%2C+i=1%2C+15%29%2F15%29 ALIGN=MIDDLE  ALT=\"+sqrt%28sum+%28%28X%5Bi%5D-28.87%29%5E2%2C+i=1%2C+15%29%2F15%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Standard Deviation=11.10\r<BR>\n" );
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document.write( "Solution for Variance:<BR>\n" );
document.write( "Simply: (Standard Dev)^2<BR>\n" );
document.write( "Variance= (11.10)^2 = 123.18 </SPAN>\n" );
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