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 May 11th, 2011, 10:50 AM #1 Senior Member   Joined: Mar 2011 Posts: 105 Thanks: 0 Find correlation coefficient? the least squares best fit line for the number of years in college X and the income level Y is Y=11.9+ 3.46X Given that the standard errors of X and Y are Sx=1.8 and Sy = 7.2, what is the correlation coefficient?
 May 11th, 2011, 04:02 PM #2 Senior Member     Joined: Feb 2010 Posts: 706 Thanks: 140 Re: Find correlation coefficient? $r= +0.865$
May 11th, 2011, 04:41 PM   #3
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Joined: Mar 2011

Posts: 105
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Re: Find correlation coefficient?

Quote:
 Originally Posted by mrtwhs $r= +0.865$
How can you find that?

May 12th, 2011, 04:09 AM   #4
Senior Member

Joined: Feb 2010

Posts: 706
Thanks: 140

Re: Find correlation coefficient?

Quote:
Originally Posted by daivinhtran
Quote:
 Originally Posted by mrtwhs $r= +0.865$
How can you find that?
Look in your notes or in your textbook for any formulas relating to the slope of a least squares regression line.

May 14th, 2011, 12:35 PM   #5
Senior Member

Joined: Mar 2011

Posts: 105
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Re: Find correlation coefficient?

Quote:
Originally Posted by mrtwhs
Quote:
Originally Posted by daivinhtran
Quote:
 Originally Posted by mrtwhs $r= +0.865$
How can you find that?
Look in your notes or in your textbook for any formulas relating to the slope of a least squares regression line.

I don't have the textbook or any formulas.....and that's why I post my question on here

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### given that the standard errors of x and y are sx = 1.8 and sy = 7.2, what is the correlation coefficient?

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