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A large cable company reports that 42% of its customers subscribe to its Internet service, 32% subscribe to its phone service, and 51% subscribe to its Internet service or its phone service (or both).
a. Use the given probability information to set up a “hypothetical 1000” table.
b. Use the table to find the following:
i. the probability that a randomly selected customer subscribes to both the Internet service and the phone service.
ii. the probability that a randomly selected customer subscribes to exactly one of the two services. |
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