document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=965515>Question 965515</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me on this math problem. Unfortunately I was not able to include a picture in this submission, so I posted a link to that question below. Just copy and paste the link onto your address bar. Please help me tutors, I'd really appreciate any help! God bless :) \r<BR>\n" );
document.write( "\n" );
document.write( "https://answers.yahoo.com/question/index?qid=20150422153804AACPJzS </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #590165 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><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=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=590165\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> here's an online statistics calculator that will help.<BR>\n" );
document.write( "<a  rel=nofollow HREF= \"http://www.alcula.com/calculators/statistics/\" target = \"_blank\">http://www.alcula.com/calculators/statistics/</a>\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "you would take your data and enter it into the regression calculator.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "it will then generate a scatter plot and a trend line for you.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "you enter the x and y values as x,y on each line.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "x is the number of people in each household and y is their monthly water bill.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "the input will look like this:\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" src = \"http://theo.x10hosting.com/2015/042301.jpg\" alt=\"$$$\" </>\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "you enter your x value and y values for each pair of data as x,y.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "x is the number of people in the household and y is the monthly water bill for that household.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "you can use the scatter plot generator to get a scatter plot of the data.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "this plots the x values on the x axis and the y values on the y axis.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "the output of that looks like this:\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" src = \"http://theo.x10hosting.com/2015/042302.jpg\" alt=\"$$$\" </>\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "you use the regression calculator to generate your trend line.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "that output looks like shis:\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" src = \"http://theo.x10hosting.com/2015/042303.jpg\" alt=\"$$$\" </>\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "you get the correlation coefficient by running the correlation coefficient calculator.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "that output looks like this:\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" src = \"http://theo.x10hosting.com/2015/042304.jpg\" alt=\"$$$\" </>\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "the r^2 value tells you how good your fit is.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "r^2 is the valuoe or r squared.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "with this data, r^2 will be equal to roughly .98515 square = .97052 which is a pretty good fit.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "any r^2 greater than .9 is a good fit.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "your regression calculator tells you that:\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "the equation for the line of best fit is y = 0.61 * x - 0.33\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "the calculator shows you much more accuracy, but for practical purposes, this is good enough to get the general idea of how that equation will look on a graph.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "if youo need a tutorial on correlation and regression, then the following links might be helpful.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<a  rel=nofollow HREF= \"http://www.regentsprep.org/regents/math/algebra/AD4/indexAD4.htm\" target = \"_blank\">http://www.regentsprep.org/regents/math/algebra/AD4/indexAD4.htm</a> </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );