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Mathematics, 04.04.2020 14:27 yqui8767

A dentist was making note of his upcoming appointments with different aged patients and the reasons for their visits.
The probability that an appointment is with patients over 60 years old is 0.2, and the probability that it is for a broken tooth is 0.4.
What is the probability that a randomly chosen appointment is with patients over 60 years old or is for a broken tooth if those are independent events?

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