Tyee recorded the grade-level and instrument of everyone in the middle school School of Rock below. Seventh Grade Students Instrument # of Students Guitar 3 Bass 8 Drums 9 Keyboard 8 Eighth Grade Students Instrument # of Students Guitar 3 Bass 14 Drums 5 Keyboard 4 Based on these results, express the probability that a seventh grader chosen at random will play an instrument other than guitar as a decimal to the nearest hundredth.

Tyee recorded the grade-level and instrument of everyone in the middle school School of Rock below. Seventh Grade Students Instrument # of Students Guitar 3 Bass 8 Drums 9 Keyboard 8 Eighth Grade Students Instrument # of Students Guitar 3 Bass 14 Drums 5 Keyboard 4 Based on these results, express the probability that a seventh grader chosen at random will play an instrument other than guitar as a decimal to the nearest hundredth.

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Tyee recorded the grade-level and instrument of everyone in the middle school School of Rock below.

Seventh Grade Students

Instrument	# of Students
Guitar	3
Bass	8
Drums	9
Keyboard	8

Eighth Grade Students

Instrument	# of Students
Guitar	3
Bass	14
Drums	5
Keyboard	4

Based on these results, express the probability that a seventh grader chosen at random will play an instrument other than guitar as a decimal to the nearest hundredth.

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