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Grades earned in a class are recorded for 2 group of students (students taking only History and the others only taking Biology), the grades in

Grades earned in a class are recorded for 2 group of students (students taking only History and the others only taking Biology), the grades in those classes are summarized below. A B C Total History 11 18 13 42 Biology 3 10 14 27 Total 14 28 27 69 If one student was chosen at random, find the probability that the student got a C. Give your answer as a fraction or decimal

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