document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1052550>Question 1052550</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please check if my answer is right for this. \r<BR>\n" );
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document.write( "Find the least squares regression line of the data below using the regression feature of a graphing utility. Then, find the average lengths of cellular calls for the year 2013.\r<BR>\n" );
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document.write( "Number Chart: https://s15.postimg.org/3la5pgvcr/graph_gain.png<BR>\n" );
document.write( "A.) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+242.+88+ ALIGN=MIDDLE  ALT=\"+242.+88+\"   DISABLED_style= \"max-width:90%; height:auto;\" > minutes<BR>\n" );
document.write( "B.) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+4.08+ ALIGN=MIDDLE  ALT=\"+4.08+\"   DISABLED_style= \"max-width:90%; height:auto;\" > minutes -- my answer<BR>\n" );
document.write( "C.) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+3.48+ ALIGN=MIDDLE  ALT=\"+3.48+\"   DISABLED_style= \"max-width:90%; height:auto;\" > minutes<BR>\n" );
document.write( "D.) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+3.97+ ALIGN=MIDDLE  ALT=\"+3.97+\"   DISABLED_style= \"max-width:90%; height:auto;\" > minutes </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #667899 by </B><A HREF=/tutors/aboutme.mpl?userid=Fombitz><B>Fombitz(32388)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Fombitz><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=Fombitz><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=667899\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The regression line is,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=0.122x-241.461 ALIGN=MIDDLE  ALT=\"y=0.122x-241.461\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Typically a regression line is used to interpolate not extrapolate. <BR>\n" );
document.write( "Given that caveat,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=0.122%282013%29-241.461 ALIGN=MIDDLE  ALT=\"y=0.122%282013%29-241.461\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=4.125 ALIGN=MIDDLE  ALT=\"y=4.125\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "I guess 4.08 is the closest answer.  </SPAN>\n" );
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