Activity 4: Pen Works On your answer sheet, discuss the following questions on permutation and combination briefly but substantially. 1. Describe the difference between permutation and combination. Discuss the important characteristic that a counting task/situation has to have in order to classify it as a permutation or combination 2. Enumerate real life situations that involve permutation and combination Give two examples each. 3. Discuss briefly when to use formulas for circular permutation and distinguishable permutation. 4. Given a group of ten runners joining race, construct a counting problem situation that will make it an example that illustrates permutation. 5. Given a list of Korean drama series, construct a counting problem situation that will make it an example that illustrates combination.​