In each case determine whether you expect the two variables x and y indicated to have positive, negative, or zero correlation.

___	Zero Correlation
___	Positive Correlation
____	Negative Correlation

1.	The weight x of an automobile and the fuel economy y in miles per gallon.
2.	The number x of pages in a book and the age y of the intended reader.
3.	The weight x of an automobile and the reading y on its odometer.