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At a college, 67% of courses have final exams and 42% of courses require research papers. Suppose that 28% of courses have a research paper and a final exam. What is the probability that a course has a
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At a college, 67% of courses have final exams and 42% of courses require research papers. Suppose that 28% of courses have a research paper and a final exam. What is the probability that a course has a research paper or final exam?​

User Hammy
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89%

(the last bit of information is irrelevant)

User Naor Tedgi
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