Mathematics, 19.02.2021 08:30 irene27

at school there are 8 students who only play violin, 10 students who only play guitar, 3 students who play both, and 12 students who don't play any instrument at all. if a student is randomly selected from this school, what is the probability that they play violin or guitar

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at school there are 8 students who only play violin, 10 students who only play guitar, 3 students wh...