Podcast
Play an AI-generated podcast conversation about this lesson
Download our mobile app to listen on the go
Get App
Questions and Answers
What is the formula to calculate the number of permutations of n objects taken r at a time?
What is the formula to calculate the number of permutations of n objects taken r at a time?
- nPr = n! / (n - r)! (correct)
- nPr = (n - r)!
- nPr = n! / r!
- nPr = n! * r!
What is the fundamental difference between permutations and combinations?
What is the fundamental difference between permutations and combinations?
- Permutations consider the order of arrangement, while combinations do not. (correct)
- Permutations always result in a larger number than combinations.
- Permutations involve only distinct objects, while combinations involve identical objects.
- Permutations can be calculated using factorials, while combinations cannot.
In how many ways can 5 people be arranged in a line?
In how many ways can 5 people be arranged in a line?
- 120 (correct)
- 60
- 24
- 20
Flashcards are hidden until you start studying
