Researchers found a moderate correlation between the length of a customer's driveway and the size of the tips the customer gave pizza delivery people. The longer the driveway, the smaller the tip the delivery person received. The correlation coefficient that most likely represents this relationship would be:

If parents believe that children are tabula rasas at birth, they are likely to

a. leave their children alone so their virtuous natures can unfold. b. be very permissive with their children. c. assume that nothing they do will have any influence on their children's development. d. plan their children's experiences from the moment of their birth.

The methodology of the experiment required subjects to first _____________, and

then to ____________. A) rinse with water : fill out a questionnaire B) rinse with water : taste the first cola C) fill out a questionnaire : rinse with water D) fill out a questionnaire : taste the cola pair