Question

students in the high school choir sing one of four voice parts. tenors 2 sopranos 9 altos 20 basses 14 what is the probability that a randomly selected singer will be a soprano? write your answer as a fraction or whole number. p(soprano) =

Explanation:

Step1: Calculate total number of singers

$2 + 9+20 + 14=45$

Step2: Calculate probability of soprano

The number of sopranos is 9. Probability formula is $P(A)=\frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}}$. So $P(\text{soprano})=\frac{9}{45}$

Answer:

$\frac{9}{45}$