Learning Resources

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Outcomes

In this lesson you will

  • Be introduced to and use factorial notation.
  • Explore the formula for calculating the number of permutations obtained when r items are taken from a total of n items.

By the end of this section you should be able to:

  • Develop an understanding of factorial notation and apply it to calculating permutations and combinations.
  • Distinguish between situations that involve combinations and permutations.
  • Develop and apply formulae to evaluate permutations and combinations.

Prerequisites

To be successful in this lesson, it would be helpful to know the following:

  • The Fundamental Counting Principle.