HR manager wants to meet with YOU at 2:00 pm. What are the odds?

HR manager wants to meet with YOU at 2:00 pm. What are the odds? Well, there were 5 managers in your division to choose from, and he randomly selected 2 managers to meet one-on-one, either at 1:00 pm or 2:00 pm.  How many possible ways could the schedule be set? Calculate the value using a formula, and verify by listing the sample set.