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

Question

Seventh Grade Students
Instrument # of Students
Guitar 14
Bass 9
Drums 2
Keyboard 9
Eighth Grade Students
Instrument # of Students
Guitar 4
Bass 15
Drums 12
Keyboard 14

Based on these results, express the probability that an eighth grader chosen at random will play the drums as a decimal to the nearest hundredth

Answer 1

The total number of eighth grade students is 4 + 15 + 12 + 14 = 45. The number of eighth grade students who play drums is 12.

Therefore, the probability that an eighth grader chosen at random will play the drums is:

12/45 ≈ 0.27

So, the probability as a decimal to the nearest hundredth that an eighth grader chosen at random will play the drums is 0.27.