ANSWER:
The probability is 73.3%
STEP-BY-STEP EXPLANATION:
In this case, to calculate the probability, two values must be taken into account.
The number of students who do not play an instrument and the total number of students, the probability would be the quotient between these two values, like this:
[tex]\begin{gathered} P=\frac{2+20}{5+2+3+20} \\ P=\frac{22}{30}=\frac{11}{15}=0.733=73.3\text{\%} \end{gathered}[/tex]
