Mathematics, 17.07.2019 10:30 wolfking800

Question 2: show working out in a group of 27 people, 9 flat flute only, 12 play piano only, 4 play both instruments. a student is chosen at random. what is the probability that the person plays neither instruments?

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Question 2: show working out in a group of 27 people, 9 flat flute only, 12 play piano only, 4 play...