The first part of this course concerns foundational issues on statistical inference, both in the bayesian and in the non-bayesian approach. The second part regards bayesian methods of inference. The third part treats various models for analyzing multivariate data: linear multiple and multivariate regressions, principal components, facior analysis and canonical correlations.2) S.J.Press: Applied Multivariate Analysis (Second Edition). R.E.Krieger Publishing Company, Malabar, Florida. 1982.