Permutation & Combination
Flashcard
•
Mathematics
•
11th Grade
•
Practice Problem
•
Hard
Wayground Content
FREE Resource
Student preview
15 questions
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1.
FLASHCARD QUESTION
Front
What is a permutation?
Back
A permutation is an arrangement of objects in a specific order. The order of arrangement matters.
2.
FLASHCARD QUESTION
Front
What is a combination?
Back
A combination is a selection of objects where the order does not matter.
3.
FLASHCARD QUESTION
Front
How many ways can 3 people be seated on 8 seats in a row?
Back
336 ways.
4.
FLASHCARD QUESTION
Front
How do you calculate permutations of n objects taken r at a time?
Back
The formula is P(n, r) = n! / (n - r)!.
5.
FLASHCARD QUESTION
Front
How do you calculate combinations of n objects taken r at a time?
Back
The formula is C(n, r) = n! / [r!(n - r)!].
6.
FLASHCARD QUESTION
Front
In how many ways can 3 prefects be chosen out of 8 prefects?
Back
56 ways.
7.
FLASHCARD QUESTION
Front
If there are 10 candidates running for 3 positions, how many ways can the positions be filled?
Back
720 ways.
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