Describe the association in a scatter plot from data

1. A scatter plot shows age of a car (x) and its price (y) for these points: (2, 53), (3, 53), (7, 44), (7, 49), (10, 43), (11, 41), (14, 31). Is the association positive, negative or none? Write positive, negative or none.

   Answer: negative

2. A scatter plot shows hours studied (x) and test score (y) for these points: (2, 40), (3, 7), (7, 12), (7, 6), (10, 11), (12, 31), (14, 36). Is the association positive, negative or none? Write positive, negative or none.

   Answer: none

3. A scatter plot shows hours studied (x) and test score (y) for these points: (2, 3), (5, 14), (6, 20), (7, 21), (9, 30), (13, 42), (15, 43). Is the association positive, negative or none? Write positive, negative or none.

   Answer: positive

Tip: Look at how y changes as x increases. Write positive, negative or none.