Use a Contingency Table

Multiple Choice

Use a contingency table.
-The option to buy extended warranties is commonplace with most electronics
Purchases. But does the type of purchase affect a consumer's willingness to pay extra for
An extended warranty? Data for 420 consumers who purchased digital cameras and
Laptop computers from a leading electronics retailer are summarized in the table. The
Probability that a consumer purchases a digital camera and an extended warranty is

A) .07
B) .42
C) .58
D) .17
E) .83