document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=117688>Question 117688</A>: <I><SPAN STYLE=\"word-break: break-all;\"> This data represents the population of a certain geographic region.\r<BR>\n" );
document.write( "\n" );
document.write( "Year       Population (in millions)\r<BR>\n" );
document.write( "\n" );
document.write( "1950            34<BR>\n" );
document.write( "1960            38<BR>\n" );
document.write( "1970            43<BR>\n" );
document.write( "1980            47<BR>\n" );
document.write( "1990            50<BR>\n" );
document.write( "2000            55\r<BR>\n" );
document.write( "\n" );
document.write( "a) Draw a line graph for the data.<BR>\n" );
document.write( "b) Use the line graph to predict the population in the year 2010.<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 #85688 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=85688\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> This data represents the population of a certain geographic region. <BR>\n" );
document.write( "Year Population (in millions) <BR>\n" );
document.write( "1950 34<BR>\n" );
document.write( "1960 38<BR>\n" );
document.write( "1970 43<BR>\n" );
document.write( "1980 47<BR>\n" );
document.write( "1990 50<BR>\n" );
document.write( "2000 55 <BR>\n" );
document.write( "a) Draw a line graph for the data.<BR>\n" );
document.write( "Plot the points on a coordinate system.<BR>\n" );
document.write( "Run a Linear Regression against the points in your data:<BR>\n" );
document.write( "(0,34),(10,38),(20,43),(30,47),etc.<BR>\n" );
document.write( "Population = 0.4143x + 34.1429\r<BR>\n" );
document.write( "\n" );
document.write( "b) Use the line graph to predict the population in the year 2010.<BR>\n" );
document.write( "Population(2010) = 0.4142*60 + 34.1429 = 59 (million)\r<BR>\n" );
document.write( "\n" );
document.write( "=============<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );