<p><strong>Questions with no answers:</strong></p>
<ol>
<li><a href="https://stats.stackexchange.com/questions/518456/clustering-with-gaussian-mixtures-choice-of-hyperparameters">Clustering with Gaussian mixtures: choice of hyperparameters</a></li>
<li><a href="https://stats.stackexchange.com/questions/512283/marginal-likelihood-of-bivariate-gaussian-model">Marginal likelihood of bivariate Gaussian model</a></li>
</ol>

Jim