document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=152042>Question 152042</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Three different classes take the FCS 140 final. In the first class, the average grade is 90 with a standard deviation of 0.00. You were in the class - what was your grade on the final?\r<BR>\n" );
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document.write( "Second, the other two classes had averages of 91 and 85, and standard deviations for those two classes were 3 and 20 respectively. So one class had an average score of 91 with a standard deviation of 3, and the other an average of 85 and a SD of 20. What can you tell me about those classes based on these numbers?<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 #111747 by </B><A HREF=/tutors/aboutme.mpl?userid=vleith><B>vleith(2983)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=vleith><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=111747\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> An sd of 0 means there is no 'spread' around the mean, So everyone got the same grade\r<BR>\n" );
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document.write( "The class with 91 and a small s, tells us the the grades are spread normally and tightly around a mean of 91. So the class did well and everyone got a great grade.\r<BR>\n" );
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document.write( "The class with an 85 mean and an sd of 20 tells us the grades are widely spread. Some students did really well; others did not.  </SPAN>\n" );
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