Suppose we performed a regression task and we got the following prediction for the true values:

$\backslash$table$[[$True$,$Predicted$],[2\mathrm{.}5,2\mathrm{.}1],[3\mathrm{.}7,3\mathrm{.}9],[1\mathrm{.}8,1\mathrm{.}7],[4\mathrm{.}0,3\mathrm{.}8],[5\mathrm{.}2,5\mathrm{.}0]]$

Compute the evaluation metrics for this task $($MSE$,$ RMSE, and R$-$squared$)$