A dependent event occurs when the outcome of one event affects the outcome of another. In the options provided, the scenario that represents a dependent event is:
"determining the reward for completing chores from a spinner that contains 6 different rewards and removing the selected reward from the list once it has been selected."
In this case, each selection affects the next because once a reward has been chosen and removed from the spinner, it cannot be selected again, making the probabilities of future selections dependent on previous outcomes.