document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=188613>Question 188613</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Use the following pairs of bivariate data to find the equation of the regression line. Assume a linear correlation exists. <BR>\n" );
document.write( "x 3 4 5 5 6 7<BR>\n" );
document.write( "y 9 8 5 4 4 4 <BR>\n" );
document.write( "The equation of the regression line is:<BR>\n" );
document.write( "Choose between the following\r<BR>\n" );
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document.write( "A. y = 12.67 – 1.40x<BR>\n" );
document.write( "B. y = 1.40 + 12.67x<BR>\n" );
document.write( "C. y = 1.40 – 12.67 x<BR>\n" );
document.write( "D. y  12.67 + 1.40x<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 #141427 by </B><A HREF=/tutors/aboutme.mpl?userid=solver91311><B>solver91311(24713)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=solver91311><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=solver91311><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=141427\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <font face=\"Garamond\" size=\"+2\">\r<BR>\n" );
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document.write( "Showing you how to do a linear regression analysis is a lot of work.  Drop me a line and we can negotiate a price.  As for this question, I can tell you how to answer just by plotting the points and making an eye-ball trend line.\r<BR>\n" );
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document.write( "If you plot the points and just make a rough guess at the trend line you will see that the line trends down left to right.  That means the equation has a negative slope.  Throw out answers B and D which have positive coefficients on x.  Of the other two answers, you have a slope of more than -12 and a slope of about -1 and a half.  A slope of -12 is very steep, and a slope of -1 is a 45 degree angle.  Hence, answer A.\r<BR>\n" );
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document.write( "John<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE e^{i\pi} + 1 = 0\"><BR>\n" );
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