Lesson 2C: Permutations
Recall Example 1 in Lesson 2A in which customers were asked to
choose an ice cream cone. The problem was to determine how many
arrangements
a customer could have when given one choice each of cone, ice
cream, and topping.

Because you have to choose cone  ice cream  topping in a specific order , this problem is called a permutation . Permutations are the focus of this Training Camp. 

By the end of this lesson, you should be able to
determine, the number of permutations of n elements taken r at a time represent the number of arrangements of n elements taken n at a time, using factorial notation determine the number of permutations of n elements taken n at a time where some elements are not distinct
Use the flowchart to help you throughout this lesson. Click on the image to enlarge.