Question 312698
{{{drawing(300,300,-8,8,-5,15,grid(1),circle(1,7,.25),
circle(1,7,.25),
circle(-2,1,.25),
circle(3,13,.25),
circle(-4,-3,.25),
circle(0,5,.25))}}}
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Looks like a linear model would be a good choice.
{{{Xave=-0.4}}}
{{{Yave=4.6}}}
Sum of squares in x:{{{SSXX=29.2}}}
Sum of squares in y:{{{SSYY=147.2}}}
Sum of squares in xy:{{{SSXY=65.2}}}
b={{{SSXY/SSXX=2.233}}}
b'={{{SSXY/SSYY=0.443}}}
r^2=b*b'={{{0.989}}}
{{{a=Yave-b(Xave)=5.493}}}
{{{ highlight_green(y=2.233x+5.493)}}}
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{{{drawing(300,300,-8,8,-5,15,grid(1),circle(1,7,.25),
circle(1,7,.25),
circle(-2,1,.25),
circle(3,13,.25),
circle(-4,-3,.25),
circle(0,5,.25),graph(300,300,-8,8,-5,15,2.233x+5.493))}}}