A retail establishment accepts either the American Express

Chapter 2, Problem 9P

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QUESTION:

Problem 9P

A retail establishment accepts either the American Express or the VISA credit card. A total of 24 percent of its customers carry an American Express card, 61 percent carry a VISA card, and 11 percent carry both cards. What percentage of its customers carry a credit card that the establishment will accept?

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QUESTION:

Problem 9P

A retail establishment accepts either the American Express or the VISA credit card. A total of 24 percent of its customers carry an American Express card, 61 percent carry a VISA card, and 11 percent carry both cards. What percentage of its customers carry a credit card that the establishment will accept?

ANSWER:

Step 1 of 2

(a)

We are asked to find the percentage of its customers that carry a credit card that the establishment will accept.

Let  be the event that a person carries the American Express card.

Let  be the event that a person carries the VISA card.

 

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