Solution
= Solution
$\mathcal R_n(\mathcal H)=E\sup_{h\in\mathcal H}|n^{-1}\sum_i\varepsilon_i h(X_i)|$, with the expectation over data and independent Rademacher signs.
= Solution
$\mathcal R_n(\mathcal H)=E\sup_{h\in\mathcal H}|n^{-1}\sum_i\varepsilon_i h(X_i)|$, with the expectation over data and independent Rademacher signs.