I figured out how to calculate a. b. and c. however, I don't know how to interpret the coefficient of determination(the second part of c). Can anyone help? Thanks in advance.

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- Jun 12th 2008, 06:42 PMLeftBrainerStats - College level
I figured out how to calculate a. b. and c. however, I don't know how to interpret the coefficient of determination(the second part of c). Can anyone help? Thanks in advance.

- Jun 12th 2008, 07:19 PMtukeywilliams

$\displaystyle r^2 $ gives the variation of $\displaystyle Y $ explained by the linear regression model. So in 1c, $\displaystyle 7 \% $ of the variation in the net worth is explained by the linear regression model. Similarly, in 2c, $\displaystyle 57.76 \% $ of the variation in the salary is explained by the linear regression model. - Jun 12th 2008, 07:44 PMtukeywilliams
are you supposed to be getting help on this quiz?

- Jun 12th 2008, 07:55 PMLeftBrainer
Thanks, this is exactly what I needed to know: http://www.mathhelpforum.com/math-he...420ecd46-1.gif gives the variation of http://www.mathhelpforum.com/math-he...d003a3e0-1.gif explained by the linear regression model. Something close to this was in my notes but I couldn't get my brain around it.