Question

Consider the following data on study time (x) and subsequent test score ( y). x 20...

  1. Consider the following data on study time (x) and subsequent test score ( y).

x 20 15 12 10 7 14  

y 100 85 75 72 64 80  

          Find the equation of the simple linear regression line for the data in question  

             

Calculate and interpret the coefficient of determination ( r2 ) for the data and

regression from the question











a) For the regression in the question , find the predicted test score for a

     student who studies for 12 hours





b) Is the calculation in a) an example of interpolation or extrapolation ?

      Why ?


Math   Statistics-And-Probability   
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