document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1131147>Question 1131147</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A graphing calculator is recommended. \r<BR>\n" );
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document.write( "The data in the table below show the distance, in feet, a ball travels for various swing speeds, in miles per hour, of a bat.<BR>\n" );
document.write( "Bat speed (mph)	Distance (ft)<BR>\n" );
document.write( "40	199<BR>\n" );
document.write( "45	210<BR>\n" );
document.write( "50	246<BR>\n" );
document.write( "60	272<BR>\n" );
document.write( "70	300<BR>\n" );
document.write( "75	326<BR>\n" );
document.write( "80	339<BR>\n" );
document.write( "(a) Find the linear regression equation for these data. (Round all numerical values to three decimal places.) <BR>\n" );
document.write( "y =<BR>\n" );
document.write( "(b) Using the regression model, what is the expected distance a ball will travel when the bat speed is 58 miles per hour? Round to the nearest foot.__________ft<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 #748995 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=748995\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> y=3.503x+60.079<BR>\n" );
document.write( "r^2=0.988<BR>\n" );
document.write( "when x=58 mph,<BR>\n" );
document.write( "distance would be 263.25 or 263 ft. </SPAN>\n" );
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