redictor Coef SE Coef T P Constant 316.08 28.31 11.24 0.002 Elevation -30.732 3.511 -8.79 0.003 S = 11.8603 R-Sq = 95.6% a) The printout gives the value of the coefficient of determination r2. What is the value of r? Be sure to give the correct sign for r based on the sign of b. b) What percentage of the variation in y can be explained by the corresponding variation in x and the least-squares line? c) What percentage is unexplained?

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redictor Coef SE Coef T P
Constant 316.08 28.31 11.24 0.002
Elevation -30.732 3.511 -8.79 0.003
S = 11.8603 R-Sq = 95.6%  

a) The printout gives the value of the coefficient of determination r2. What is the value of r? Be sure to give the correct sign for r based on the sign of b.

b) What percentage of the variation in y can be explained by the corresponding variation in x and the least-squares line?

c) What percentage is unexplained?

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