Mathematics
Mathematics, 20.06.2021 19:00, LexyV1242

In a group of 33 pupils, 9 play the flute only. 8 play the piano only.
11 play neither instrument.
A student is selected at random.
What is the probability the student plays both instruments?

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In a group of 33 pupils, 9 play the flute only. 8 play the piano only.
11 play neither instr...

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