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OpenStudy (anonymous):
Simona's music book includes 50 piano tunes, of which 7 are by Bach, and 18 are by Mozart. If Simona chooses a tune at random, what is the probability that it is either by Bach or by Mozart?
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OpenStudy (anonymous):
18/50=.36 .36=36% of Mozart & 7/50=.14 .14= 14% of Bach hope it helps
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