Lecture #9 looked at handling uncertainty, and, in particular, the use of probability theory, and how this can be used to make decisions.
Notes are available in two formats:
This lecture was based on parts of Chapters 13, 14 and 16 of the text book. The relevant bits are Section 13.1 through 13.5, Chapter 14 through page 534, and Chapter 6, pages 610-621. As ever, the book goes into much more detail than I did.