Question 324759
{{{drawing(300,300,-50,650,-10,50,grid(1),
circle(365, 12,5 ),
circle(187, 20,5 ),
circle(122, 5,5 ),
circle(278, 15,5) ,
circle(406, 12,5 ),
circle(63 ,12,5 ),
circle(61, 12,5 ),
circle(201, 8,5),
circle(645, 40,5 ),
circle(52, 7,5 ),
circle(68, 4,5 ),
circle(330, 20,5 ),
circle(42, 7,5 ),
circle(100, 15,5 ),
circle(240, 12,5 ),
circle(21, 3,5 ),
circle(15, 1,5 ),
circle(31, 5,5 ),
circle(450, 15,5 ),
circle(154, 12,5 ),
circle(63, 5,5 ),
circle(365, 15,5),
graph(300,300,-50,650,-10,50,0))}}}
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{{{ xave=193.59 }}}
{{{ yave	=11.68}}}
{{{ SSXX	=615439.32}}}
{{{ SSYY	=1424.77}}}
{{{ SSXY	=23446.14}}}
b	={{{0.038}}}
b'	={{{16.456}}}
{{{ r^2	=0.627}}}
{{{ r 	=0.792}}}
{{{ a	=4.307}}}
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{{{highlight(y=0.038x+4.307)}}}
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{{{drawing(300,300,-50,650,-10,50,grid(1),
circle(365, 12,5 ),
circle(187, 20,5 ),
circle(122, 5,5 ),
circle(278, 15,5) ,
circle(406, 12,5 ),
circle(63 ,12,5 ),
circle(61, 12,5 ),
circle(201, 8,5),
circle(645, 40,5 ),
circle(52, 7,5 ),
circle(68, 4,5 ),
circle(330, 20,5 ),
circle(42, 7,5 ),
circle(100, 15,5 ),
circle(240, 12,5 ),
circle(21, 3,5 ),
circle(15, 1,5 ),
circle(31, 5,5 ),
circle(450, 15,5 ),
circle(154, 12,5 ),
circle(63, 5,5 ),
circle(365, 15,5),
graph(300,300,-50,650,-10,50,0.038x+4.307))}}}