Answer
The mean of the data measured by the technician is $7.0036$ mm.
Work Step by Step
The measurements taken by the technician are,
$7.0036$mm, $7.0035$mm, $7.0038$mm, $7.0035$mm, $7.0036$mm
The sum of the all measured values is
$\begin{align}
& \text{sum of all values }=7.0036+7.0035+7.0038+7.0035+7.0036 \\
& =35.018
\end{align}$
The number of measured values is $5$.
Thus, the mean of the data is
$\begin{align}
& \text{Mean}=\frac{\text{Sum of the all measured values}}{\text{Number of the measured values}} \\
& =\frac{35.018}{5} \\
& =7.0036
\end{align}$
