Permutations and Combinations for Probability
Videos and lessons to help High School students learn how to use
permutations and combinations to compute probabilities of compound
events and solve problems.
- Define n! as the product: n! (n 1)!
3! 2! 1.
- Understand that a permutation is a rearrangement of the
elements of an ordered list and calculate probabilities using
the permutation formula P(n,r) = n! (n 1)!
(n (r 1)) = n!/(n r).
- Understand that a combination is the number of ways to choose
r items from a set of n elements and calculate probabilities
using the combination formula C(n,r) = P(n,r)/r! = n!/[(n r)!
Common Core: HSS-CP.B.9
Core (Statistics & Probability)
Factorials and Permutations.
Permutations and Factorials
This video explains how to write permutations in terms of
Permutations and Combinations - word problems.
Probability -- Combinations and Permutations
Definition of the fundamental counting principle and permutations,
solving for permutation, solving for permutations with repetition,
definition of combinations, solving for the number of different
combination, solving for the number of different combinations of
Probability with Combinations and Permutations.
Probability Involving Permutations and Combinations.
Try the free Mathway calculator and
problem solver below to practice various math topics. Try the given examples, or type in your own
problem and check your answer with the step-by-step explanations.