This document discusses independent and dependent events and how to calculate their probabilities. It defines independent events as those where the occurrence of one event does not affect the probability of the other. Dependent events are those where the probability of one event is affected by whether the other occurs. The document provides examples of calculating probabilities for rolling dice and drawing cards to illustrate independent and dependent events. It explains that for independent events the probability is the product of each individual probability, while for dependent events it is the probability of the first event times the conditional probability of the second given the first.