As the administrator of a hospital, Cindy Turner wants to know what the probability is that a person checking into the hospital will require X-ray treatment and will also have hospital insurance that will cover the X-ray treatment. She knows that during the past 5 years, 23 percent of the people entering the hospital required X-rays, and that during the same period, 72 percent of the people checking into the hospital had insurance that covered X-ray treatments. What is the correct probability? Do any additional assumptions need to be made?
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