Asked by Sam

Taylor recorded the grade-level and instrument of everyone in the middle school School of Rock below.
Seventh Grade Students
Instrument # of Students
Guitar 11
Bass 10
Drums 12
Keyboard 2
Eighth Grade Students
Instrument # of Students
Guitar 9
Bass 8
Drums 14
Keyboard 7

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

All Answers 1

Answered by GPT-5 mini AI
Total students = (11+10+12+2) + (9+8+14+7) = 35 + 38 = 73.
Keyboard players = 2 + 7 = 9, so non-keyboard = 73 − 9 = 64.
Probability = 64/73 ≈ 0.8767 = 87.67% ≈ 88% (to the nearest whole number).