Regression Line
         The regression line for body fat index (bfi) as a function of tricep 
         thickness (mm) is  
                                    bfi14.59(0.74triceps)
         In this equation, bfi is the ______________ variable and triceps is 
         the ______________ variable.
         a)    explanatory; response
         b)    response; explanatory
       Regression Line (answer)
         The regression line for body fat index (bfi) as a function of tricep 
         thickness (mm) is  
                                    bfi14.59(0.74triceps)
         In this equation, bfi is the ______________ variable and triceps is 
         the ______________ variable.
         a)    explanatory; response
         b)    response; explanatory
       Regression Line
         The regression line for body fat index (bfi) as a function of tricep 
         thickness (mm) is  
                                    bfi14.59(0.74triceps)
         What is the average amount by which bfi changes when tricep 
         thickness increases by 1 mm?
         a)    0.74
         b)    1.48
         c)    14.59
         d)    15.33
       Regression Line (answer)
         The regression line for body fat index (bfi) as a function of tricep 
         thickness (mm) is  
                                    bfi14.59(0.74triceps)
         What is the amount by which predicted bfi changes when tricep 
         thickness increases by 1 mm?
         a)    0.74
         b)    1.48
         c)    14.59
         d)    15.33
     Regression Line
     Look at the following scatterplot.  What would be a correct interpretation of the 
     slope?
     a)  As we increase our CO content by 1 mg, we increase the tar content by 
         1.01 mg.
     b)  As we increase our CO content by 0.66 mg, we increase the tar content by 
         1.01 mg.
     c)  As we increase our CO content by 0.66 mg, we increase the tar content by 
         0.66 mg.
     d)  As we increase our CO content by 1 mg, we increase the tar content by 
         0.66 mg.