document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1153914>Question 1153914</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The following distribution of marks has mean 5.5 <BR>\n" );
document.write( "Mark 	     1 	2 	3 	4 	5 	6 	7 <BR>\n" );
document.write( "Frequency    2 	4 	6 	9 	x 	9 	4 \r<BR>\n" );
document.write( "\n" );
document.write( " 	 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #776238 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13203)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=greenestamps><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=greenestamps><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=776238\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282%281%29%2B4%282%29%2B6%283%29%2B9%284%29%2Bx%285%29%2B9%286%29%2B4%287%29%29%2F%282%2B4%2B6%2B9%2Bx%2B9%2B4%29+=+5.5 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28146%2B5x%29%2F%2834%2Bx%29+=+5.5 ALIGN=MIDDLE  ALT=\"%28146%2B5x%29%2F%2834%2Bx%29+=+5.5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=146%2B5x+=+187%2B5.5x ALIGN=MIDDLE  ALT=\"146%2B5x+=+187%2B5.5x\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-41+=+.5x ALIGN=MIDDLE  ALT=\"-41+=+.5x\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+-82 ALIGN=MIDDLE  ALT=\"x+=+-82\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "Obviously the data is bad....<br><BR>\n" );
document.write( "Looking at the data for marks 1-4 and 6-7, the mean is<br><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282%281%29%2B4%282%29%2B6%283%29%2B9%284%29%2B9%286%29%2B4%287%29%29%2F%282%2B4%2B6%2B9%2B9%2B4%29+=+146%2F34 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" > = 4.29 approximately.<br><BR>\n" );
document.write( "You can't add marks of 5 to a mean of 4.29 and end up with a mean of 5.5.<br><BR>\n" );
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