document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1162128>Question 1162128</A>: <I><SPAN STYLE=\"word-break: break-all;\"> b)	The following are the scores of 15 students obtained in the midterm and final examinations in a course in<BR>\n" );
document.write( "probability and statistics	(10)\r<BR>\n" );
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document.write( "Midterm Exam, x	<BR>\n" );
document.write( "70	<BR>\n" );
document.write( "50	<BR>\n" );
document.write( "80	<BR>\n" );
document.write( "75	<BR>\n" );
document.write( "90	<BR>\n" );
document.write( "85	<BR>\n" );
document.write( "60	<BR>\n" );
document.write( "80	<BR>\n" );
document.write( "65	<BR>\n" );
document.write( "C0	<BR>\n" );
document.write( "85	<BR>\n" );
document.write( "80	<BR>\n" );
document.write( "70	<BR>\n" );
document.write( "65	<BR>\n" );
document.write( "40<BR>\n" );
document.write( "Final Exam, y	<BR>\n" );
document.write( "85	<BR>\n" );
document.write( "60	<BR>\n" );
document.write( "75	<BR>\n" );
document.write( "80	<BR>\n" );
document.write( "90	<BR>\n" );
document.write( "75	<BR>\n" );
document.write( "50	<BR>\n" );
document.write( "75	<BR>\n" );
document.write( "75	<BR>\n" );
document.write( "50	<BR>\n" );
document.write( "75	<BR>\n" );
document.write( "90	<BR>\n" );
document.write( "65	<BR>\n" );
document.write( "55	<BR>\n" );
document.write( "60<BR>\n" );
document.write( "(i)	Find the equation of the least square line to fit these data,<BR>\n" );
document.write( "(ii)	Estimate the final examination scores of a student who received a score of 74 in the midterm examination.<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 #785859 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52790)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ikleyn><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=ikleyn><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=785859\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .\r<BR>\n" );
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document.write( "In the column for x, &nbsp;in its &nbsp;10-th &nbsp;position, &nbsp;I see the &nbsp;\"number\"  &nbsp;C0.\r<BR>\n" );
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document.write( "What this mysterious &nbsp;\"number\" &nbsp;means &nbsp;?\r<BR>\n" );
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document.write( "Than more posts I read from you, than lesser is my desire to help you . . . \r<BR>\n" );
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document.write( "looking into your posts . . . \r<BR>\n" );
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document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );