document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=327867>Question 327867</A>: <I><SPAN STYLE=\"word-break: break-all;\"> please i am still not understanding this can someone please help me out on how to work this problem.\r<BR>\n" );
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document.write( "The data below are the gestation periods, in months, of randomly selected animals and their corresponding life spans, in years.\r<BR>\n" );
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document.write( "Gestation, x	8	2.1	1.3	1	11.5	5.3	3.8	24.3<BR>\n" );
document.write( "Life span, y	30	12	6	3	25	12	10	40\r<BR>\n" );
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document.write( "a. Find the equation of the regression line for the given data. Round the line values to the nearest two decimal places.  (4 points) Show your work.<BR>\n" );
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document.write( "b. Using the equation found in part a, predict the life span when the gestation is 10 months. Round to the nearest absence. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #235939 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=235939\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a) Calculate the average of the x values=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=xave ALIGN=MIDDLE  ALT=\"xave\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "Calculate the average of the y values=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=yave ALIGN=MIDDLE  ALT=\"yave\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
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document.write( "Then for each point,<BR>\n" );
document.write( "Calculate the square of the x deviation: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x-xave%29%5E2 ALIGN=MIDDLE  ALT=\"%28x-xave%29%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Calculate the square of the x deviation: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x-xave%29%5E2 ALIGN=MIDDLE  ALT=\"%28x-xave%29%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Calculate the product of x and y deviation: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x-xave%29%2A%28y-yave%29 ALIGN=MIDDLE  ALT=\"%28x-xave%29%2A%28y-yave%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Sum each of those three as SSxx, SSyy, and SSxy respectively.<BR>\n" );
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document.write( "Calculate <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b1=SSxy%2FSSxx ALIGN=MIDDLE  ALT=\"b1=SSxy%2FSSxx\"   DISABLED_style= \"max-width:90%; height:auto;\" >, this is the slope of the regression line.<BR>\n" );
document.write( "Calculate <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b2=SSxy%2FSSyy ALIGN=MIDDLE  ALT=\"b2=SSxy%2FSSyy\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%5E2=b1%2Ab2 ALIGN=MIDDLE  ALT=\"r%5E2=b1%2Ab2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Calculate the intercept of the regression line using <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=xave ALIGN=MIDDLE  ALT=\"xave\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=yave ALIGN=MIDDLE  ALT=\"yave\"   DISABLED_style= \"max-width:90%; height:auto;\" >, and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b1 ALIGN=MIDDLE  ALT=\"b1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=yave=b1%2Axave%2Ba ALIGN=MIDDLE  ALT=\"yave=b1%2Axave%2Ba\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a=yave-b1%2Axave ALIGN=MIDDLE  ALT=\"a=yave-b1%2Axave\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The equation for the regression line is then<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=b1%2Ax%2Ba ALIGN=MIDDLE  ALT=\"y=b1%2Ax%2Ba\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "EXCEL is great for this computation, you can also use the chart wizard to plot a scatterplot and add a trendline to your data.<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=xave=7.16 ALIGN=MIDDLE  ALT=\"xave=7.16\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=yave=17.25 ALIGN=MIDDLE  ALT=\"yave=17.25\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=SSxx=425.96+ ALIGN=MIDDLE  ALT=\"SSxx=425.96+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=SSyy=+1177.50 ALIGN=MIDDLE  ALT=\"SSyy=+1177.50\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=SSxy=648.68 ALIGN=MIDDLE  ALT=\"SSxy=648.68\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b1=SSxy%2FSSxx=1.523 ALIGN=MIDDLE  ALT=\"b1=SSxy%2FSSxx=1.523\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b2=SSxy%2FSSyy=0.551 ALIGN=MIDDLE  ALT=\"b2=SSxy%2FSSyy=0.551\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%5E2=b1%2Ab2=0.839 ALIGN=MIDDLE  ALT=\"r%5E2=b1%2Ab2=0.839\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a=yave-b1%2Axave=6.343 ALIGN=MIDDLE  ALT=\"a=yave-b1%2Axave=6.343\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28Y=1.52X%2B6.34%29 ALIGN=MIDDLE  ALT=\"highlight%28Y=1.52X%2B6.34%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "b) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Y=1.52%2810%29%2B6.34 ALIGN=MIDDLE  ALT=\"Y=1.52%2810%29%2B6.34\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Y=21.6 ALIGN=MIDDLE  ALT=\"Y=21.6\"   DISABLED_style= \"max-width:90%; height:auto;\" >years<BR>\n" );
document.write( "I'm not sure what the nearest absence means.  </SPAN>\n" );
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