<p><a href="https://www.prepswift.com/quizzes/quiz/prepswift-introduction-to-combinatorics" target="_blank">Introduction to Combinatorics Exercise</a></p>
<p><strong>Note</strong>: at about 1:47 into the video, Greg says that </p>
<p>"number of permutations > number of combinations" </p>
<p>This should actually be</p>
<p>"number of permutations ≥ number of combinations" </p>
<p>He gives the example of choosing four people from five to make his point. The problem is that if we choose only one person, the number of permutations and combinations would be the same, that is, 5. </p>