Answer
The required solution of probability is, $\frac{1}{6}$
Work Step by Step
We know that when the die is rolled, then the sample space of equally likely outcomes is $ S=\left\{ 1,2,3,4,5,6 \right\}$
Since there are six outcomes in the sample space, thus, $ n\left( S \right)=6$
Also, the event of obtaining a 5 can be represented by $ E=\left\{ 5 \right\}$
Since there is only one outcome, $ n\left( E \right)=1$
Hence, the probability of getting a 5 is given below:
$\begin{align}
& P\left( E \right)=\frac{n\left( E \right)}{n\left( S \right)} \\
& =\frac{1}{6}
\end{align}$
