Find the indicated probability.
-The age distribution of students at a community college is given below.
$\begin{array} { l r }
\text { Age (years) } & \text { Number of students (f) } \
\text { Under 21 } & 402 \
21 - 25 & 416 \
26 - 30 & 203 \
31 - 35 & 54 \
\text { Over 35 } & 28 \
\hline & 1103
\end{array}$
A student from the community college is selected at random. Find the probability that the student is at least 31. Round your answer to three decimal places.
A)82
B)0.926
C)0.074
D)0.049

Question

Find the indicated probability.
-The age distribution of students at a community college is given below. 
$\begin{array} { l r } 
\text { Age (years) } & \text { Number of students (f) } \
\text { Under 21 } & 402 \
21 - 25 & 416 \
26 - 30 & 203 \
31 - 35 & 54 \
\text { Over 35 } & 28 \
\hline & 1103
\end{array}$
A student from the community college is selected at random. Find the probability that the student is at least 31. Round your answer to three decimal places.
A)82
B)0.926
C)0.074
D)0.049

Quizplus · Accepted Answer

The probability that a student is at least 31 years old is found by adding the number of students who are 31 - 35 and over 35, then dividing by the total number of students. This gives $\frac{54 + 28}{1103} = \frac{82}{1103} \approx 0.074$.

Find the Indicated Probability A Student from the Community College Is Selected at Random