document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=153166>Question 153166</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I HAVE BEEN GIVEN A TABLE WHICH SHOWS THE MEDIAN \"B.M.I\" (BODY MASS INDEX) FOR FEMALES OF DIFFERENT AGES IN THE U.S IN THE YEAR 2000 . THE QUESTION IS USE TECHNOLOGY TO PLOT THE DATA POINTS ON A GRAPH?? . DEFINE ALL VARIABLES USED AND STATE ANY PARAMETERS CLEARLY??what type of function ,models the behavior of the graph? explain why one chose this function? ( very imporant!! - reason for using this function , parametres and variables )<BR>\n" );
document.write( "AGE B.M.I<BR>\n" );
document.write( "2 16.40<BR>\n" );
document.write( "3 15.70<BR>\n" );
document.write( "4 15.30<BR>\n" );
document.write( "5 15.20<BR>\n" );
document.write( "6 15.21<BR>\n" );
document.write( "7 15.40<BR>\n" );
document.write( "8 15.80<BR>\n" );
document.write( "9 16.30<BR>\n" );
document.write( "10 16.80<BR>\n" );
document.write( "11 17.50<BR>\n" );
document.write( "12 18.18<BR>\n" );
document.write( "13 18.70<BR>\n" );
document.write( "14 19.36<BR>\n" );
document.write( "15 19.88<BR>\n" );
document.write( "16 20.40<BR>\n" );
document.write( "17 20.85<BR>\n" );
document.write( "18 21.22<BR>\n" );
document.write( "19 21.60<BR>\n" );
document.write( "20 21.65<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 #112694 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=112694\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I entered the data in a TI-83.<BR>\n" );
document.write( "I ran the LinReg, QuadReg, CubReg, QuartReg programs against the data.<BR>\n" );
document.write( "Best fit is with the cubic and quartic regressions.<BR>\n" );
document.write( "With both the R^2 values are 0.999... indicating a close fit.<BR>\n" );
document.write( "Visually both track the data very well.<BR>\n" );
document.write( "The cubic is y = -0.004075x^3+0.153565x^2-1.275736x+18.272879<BR>\n" );
document.write( "The quartic is y = 9.7x10^-5x^4 - 0.008354x^3 + 0.21674x^2 -1.63x+18.863421<BR>\n" );
document.write( "-------------<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );