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)=
The total number of students in the choir is 2 + 9 + 20 + 14 = 45.
The number of sopranos is 9.
So the probability of randomly selecting a soprano is:
P(soprano) = Number of sopranos / Total number of students
P(soprano) = 9 / 45
P(soprano) = 1 / 5
Therefore, the probability that a randomly selected singer will be a soprano is 1/5.