Mathematics
Mathematics, 29.10.2021 09:00, whitakers87

Among a group of 200 students, 137 are enrolled in a mathematics class, 50 in history class and 124 in music class. Also 33 are enrolled in both mathematics and history, 29 in both history and music; the number in both mathematics and music is 92. Finally the number of enrolled in all three classes is 18. Let A1, A2 and A3 the events that a selected student is enrolled in mathematics class, history class and music class respectively. Determine the probability that a student selected randomly from the 200 is enrolled in at least one of the three classes.

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Among a group of 200 students, 137 are enrolled in a mathematics class, 50 in history class and 124...

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