Arrangements Summary

Arrangements

Summary

situations often occur where a number of items have to be selected from a larger set of items.

there can be different requirements on how these items are to be selected and arranged and there are a number of techniques and formulae which can help to do this.

Key Skills
  • manipulate and evaluate expressions involving factorials
  • find numbers of distinct arrangements or selections from a given number of objects using the multiplication principle and factorials

Vocabulary

factorial, multiplication principle.