1) The document contains 6 examples of probability problems involving events such as mortgages being fixed or variable rate, construction projects being completed on time, a motorist stopping at traffic signals, grading errors on exams, vehicles passing emissions inspections, and prizes won from slips of paper drawn from a box. 2) It provides the solutions and step-by-step workings for calculating probabilities of unions, intersections, and complements of events. 3) One example shows that three events are pairwise independent but not mutually independent, as their joint probability does not equal the product of their individual probabilities.