Question

A university class has 18 students enrolled, 3 of whom are seniors.
What is the probability that a randomly chosen student will be a senior?
Write your answer as a fraction or whole number.
P(senior)=

Answer 1

To find the probability that a randomly chosen student is a senior, you can use the formula for probability:

\[
P(\text{senior}) = \frac{\text{Number of seniors}}{\text{Total number of students}}
\]

In this case, there are 3 seniors and a total of 18 students. Therefore, the probability is:

\[
P(\text{senior}) = \frac{3}{18}
\]

This fraction can be simplified:

\[
P(\text{senior}) = \frac{1}{6}
\]

Thus, the probability that a randomly chosen student is a senior is:

\[
\boxed{\frac{1}{6}}
\]