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Mathematics, 09.06.2021 17:10 tonya3498

Adrian recorded the grade-level and instrument of everyone in the middle school School of Rock below. Seventh Grade Students
Instrument# of Students
Guitar15
Bass11
Drums8
Keyboard2
Eighth Grade Students
Instrument# of Students
Guitar5
Bass13
Drums10
Keyboard12

Based on these results, express the probability that a seventh grader chosen at random will play an instrument other than keyboard as a percent to the nearest whole number.

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