Malik recorded the grade-level and instrument of everyone in the middle school
School of Rock below.
Seventh Grade Students
Instrument # of Students
Guitar
Bass
Drums
Keyboard
8
2
13
3
Eighth Grade Students
Instrument # of Students
Guitar
Bass
Drums
Keyboard
8
11
7
8
Based on these results, express the probability that a student chosen at random will
play the guitar as a decimal to the nearest hundredth.