Answer
The probability is\[\frac{1}{38}\].
Work Step by Step
The probability is calculated as
\[P\left( E \right)=\frac{N\left( E \right)}{N\left( S \right)}\]
The total numbers are 38, so \[P\left( E \right)=38\]
The total number of slots with the number 7 is 1, so\[N\left( E \right)=1\]
Substitute the values in the above formula:
\[\begin{align}
& P\left( E \right)=\frac{N\left( E \right)}{N\left( S \right)} \\
& =\frac{1}{38}
\end{align}\]
Hence, the probability is \[\frac{1}{38}\].
