I’m beginning a graduate-level probability course shortly and it requires some general knowledge of univariate and multivariate calculus. I’ve never studied it much in a formal sense, so I’m looking for some resources that I could study/review in parallel.

As a learner I do better with intuitive real-world explanations rather than the overly theoretical, if that helps. So far I've mostly looked at Better Explained.

For reference, the book for the course is *Introduction to Probability* (Bertsekas and Tsitsiklis, 2008).