By textbook section
For working straight out of the book — jump in at “section 3.4, exercise 52”.
2.2 Axioms, Interpretations, and Properties of Probabilityexercises 11–28 · 18 filed
2.4 Conditional Probabilityexercises 45–69 · 25 filed
3.2 Probability Distributions for Discrete Random Variablesexercises 11–28 · 18 filed
3.4 The Binomial Probability Distributionexercises 46–67 · 22 filed
3.5 Hypergeometric and Negative Binomial Distributionsexercises 68–78 · 11 filed