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Addition theorem on probability

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A survey of magazine subscribers showed that 55.8% rented a car during the last 12 months for business reasons, 44% rented a car for personal reasons, and 25% rented a car for both business and personal reasons.

a. What is the probability that a subscriber rented a car for personal or business reasons?
b. What is the probability that a subscriber rented did not rent a car for either personal or business reasons?

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Solution Summary

Calculation of probability based on addition theorem.

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Let A be the event that the car is rented for business reasons
and B be the event that the car is ...

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