The sample space of an experiment is S={1, 2, 3, 4, 5} . If each outcome is equally likely to occur, which graph models the expected probability of each outcome?

A bar graph would be the most appropriate way to model the expected probability of each outcome in this scenario. Each outcome (1, 2, 3, 4, 5) would be represented on the x-axis, and the probability of each outcome occurring would be represented on the y-axis. Since each outcome is equally likely to occur, each bar on the graph would have the same height, reflecting the equal probability of each outcome occurring.