A student investigates the discharge of a capacitor $C$ through a voltmeter. After charging the capacitor to an initial potential difference, it is allowed to discharge through the voltmeter. The student repeats the measurement of the time $T_{1/2}$ for the potential difference to fall to half of its initial value five times. The recorded values are $$\begin{gathered} 8.42 \\ texts \end{gathered}$$, $$\begin{gathered} 8.35 \\ texts \end{gathered}$$, $$\begin{gathered} 8.48 \\ texts \end{gathered}$$, $$\begin{gathered} 8.40 \\ texts \end{gathered}$$, and $$\begin{gathered} 8.55 \\ texts \end{gathered}$$.