in a group of 33 pupils , 1 play the flute only
12 play the piano only
10 play neither instrument
a student is selected at random
what is the probability the student play both instruments?
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Step-by-step explanation:
total no. of pupil = 33
no. of pupil play instruments = 1 +12+10 = 23
no. of pupil not play instruments= 33-23 = 10
probability is no.of favourable outcomes/ total no.of outcomes
= 10/33
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