document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1115412>Question 1115412</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I need help. my teacher never touched this section.\r<BR>\n" );
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document.write( "2.2 Find the mean and the standard deviation of the set of numbers 5, 8,8,9,14,18,100. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #730289 by </B><A HREF=/tutors/aboutme.mpl?userid=MathLover1><B>MathLover1(20850)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathLover1><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=MathLover1><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=730289\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> mean of\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5 ALIGN=MIDDLE  ALT=\"5\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=8 ALIGN=MIDDLE  ALT=\"8\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=8 ALIGN=MIDDLE  ALT=\"8\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=9 ALIGN=MIDDLE  ALT=\"9\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=14 ALIGN=MIDDLE  ALT=\"14\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=18 ALIGN=MIDDLE  ALT=\"18\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=100 ALIGN=MIDDLE  ALT=\"100\"   DISABLED_style= \"max-width:90%; height:auto;\" > is: \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%285%2B8%2B8%2B9%2B14%2B18%2B100%29%2F7=162%2F7 ALIGN=MIDDLE  ALT=\"%285%2B8%2B8%2B9%2B14%2B18%2B100%29%2F7=162%2F7\"   DISABLED_style= \"max-width:90%; height:auto;\" > &#8776; <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=23.143 ALIGN=MIDDLE  ALT=\"23.143\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "and standard deviation is:\r<BR>\n" );
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document.write( "The standard deviation  of a probability distribution is defined as the square root of the variance.\r<BR>\n" );
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document.write( "To find the variance, subtract the mean from each of the x values,\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5-23.143+=+-18.143 ALIGN=MIDDLE  ALT=\"5-23.143+=+-18.143\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=8-23.143=+-15.143 ALIGN=MIDDLE  ALT=\"8-23.143=+-15.143\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=8-23.143+=+-15.143 ALIGN=MIDDLE  ALT=\"8-23.143+=+-15.143\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=9-23.143+=+-14.143 ALIGN=MIDDLE  ALT=\"9-23.143+=+-14.143\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "18-23.143 = -5.143<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=100-23.143=76.857 ALIGN=MIDDLE  ALT=\"100-23.143=76.857\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Now square all the answers you have got from subtraction.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-18.143%29%5E2+=329.168449 ALIGN=MIDDLE  ALT=\"%28-18.143%29%5E2+=329.168449\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-15.143%29%5E2+=229.310449 ALIGN=MIDDLE  ALT=\"%28-15.143%29%5E2+=229.310449\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-15.143%29%5E2+=229.310449 ALIGN=MIDDLE  ALT=\"%28-15.143%29%5E2+=229.310449\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-14.143%29%5E2+=+200.024449 ALIGN=MIDDLE  ALT=\"%28-14.143%29%5E2+=+200.024449\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-5.143%29%5E2+=+26.450449 ALIGN=MIDDLE  ALT=\"%28-5.143%29%5E2+=+26.450449\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2876.857%29%5E2+=+5906.998449 ALIGN=MIDDLE  ALT=\"%2876.857%29%5E2+=+5906.998449\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Add all the Squared numbers,\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=329.168449+%2B+229.310449+%2B+229.310449+%2B+25+%2B+200.024449%2B+26.450449%2B5906.998449+=+6946.262694 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Divide the sum of squares by <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28n-1%29+ ALIGN=MIDDLE  ALT=\"%28n-1%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" > to get variance\r<BR>\n" );
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document.write( " <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=variance=6946.262694%2F%28n-1%29 ALIGN=MIDDLE  ALT=\"variance=6946.262694%2F%28n-1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > .... and in your case <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=n=7 ALIGN=MIDDLE  ALT=\"n=7\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( " <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=variance=6946.262694%2F6 ALIGN=MIDDLE  ALT=\"variance=6946.262694%2F6\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( " <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=variance=1157.710449 ALIGN=MIDDLE  ALT=\"variance=1157.710449\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Find the square root of variance=standard deviation, \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%281157.710449%29=34.02514436%29 ALIGN=MIDDLE  ALT=\"sqrt%281157.710449%29=34.02514436%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >&#8776; <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=34.03 ALIGN=MIDDLE  ALT=\"34.03\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );