Question

Please help Magan recorded the grade-level and instrument of everyone in the middle school

School of Rock below.


Based on these results, express the probability that a seventh grader chosen at

random will play the guitar as a fraction in simplest form?

Answer 1

Answer:

$Probability = \frac{11}{40}$

Step-by-step explanation:

Given

See attachment

Required

The probability that a 7th grader selected will play guitar.

From the attachment, we have:

$7th\ graders =11+8+8+13$

$7th\ graders =40$

7th graders that can play guitars are:

$Guitars = 11$

So, the probability is:

$Probability = \frac{Guitars}{7th\ graders}$

$Probability = \frac{11}{40}$