document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=655702>Question 655702</A>: <I><SPAN STYLE=\"word-break: break-all;\"> You are given the following data.\r<BR>\n" );
document.write( "\n" );
document.write( "Number of Absences      Final Grade\r<BR>\n" );
document.write( "\n" );
document.write( "0                          99\r<BR>\n" );
document.write( "\n" );
document.write( "1                          94\r<BR>\n" );
document.write( "\n" );
document.write( "2                          79\r<BR>\n" );
document.write( "\n" );
document.write( "3                          73\r<BR>\n" );
document.write( "\n" );
document.write( "4                          68\r<BR>\n" );
document.write( "\n" );
document.write( "5                          53\r<BR>\n" );
document.write( "\n" );
document.write( " <BR>\n" );
document.write( "-          Find the correlation coefficient for the data.<BR>\n" );
document.write( "-          Find the equation for the regression line for the data, and predict the final grade of a student who misses 3.5 days. (Points : 6)<BR>\n" );
document.write( "      <BR>\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 #409262 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=409262\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You are given the following data. <BR>\n" );
document.write( "Number of Absences Final Grade <BR>\n" );
document.write( "0 99 <BR>\n" );
document.write( "1 94 <BR>\n" );
document.write( "2 79 <BR>\n" );
document.write( "3 73 <BR>\n" );
document.write( "4 68 <BR>\n" );
document.write( "5 53 \r<BR>\n" );
document.write( "\n" );
document.write( "- Find the correlation coefficient for the data.<BR>\n" );
document.write( "- Find the equation for the regression line for the data, and predict the final grade of a student who misses 3.5 days.<BR>\n" );
document.write( "----<BR>\n" );
document.write( "cc: r = -0.9865<BR>\n" );
document.write( "Regression equation: y = -8.97x+100<BR>\n" );
document.write( "-----<BR>\n" );
document.write( "f(3.5) = 68.695 or 69 when rounded up<BR>\n" );
document.write( "==============<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );