In the proof of Proposition 16.2 (unbiasedness of the inner product estimator of \(\mathcal{V}^{2}\) ) show that these formulas for expected values of \(T_{1}, T_{2}, T_{3}\) are correct:

\[
\begin{aligned}
& E\left[T_{1}\right]=n(n-1) \gamma \\
& E\left[T_{2}\right]=n(n-1)\{(n-2)(n-3) \alpha \beta+2 \gamma+4(n-2) \delta\} \\
& E\left[T_{3}\right]=n(n-1)\{(n-2) \delta+\gamma\} .
\end{aligned}
\]