Mathematics, 22.07.2019 05:30 harlon852

Agroup of 15 students play different instruments, 6 play piano, 4 play violin and 5 play guitar. a student is chosen at random. what is the probability that the student chosen plays violin or piano?

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Agroup of 15 students play different instruments, 6 play piano, 4 play violin and 5 play guitar. a s...