In their recent exams 75% of a group of 4th year medical students passed pediatrics, 60% passed obstetrics and 50% passed both. a) Given that a studen

In their recent exams 75% of a group of 4th year medical students passed pediatrics, 60% passed obstetrics and 50% passed both. a) Given that a student passed pediatrics what is the probability that the student also passed obstetrics?

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