... arrangements of Lucy because first I had 4 to choose form then I had 3 to choose from then I had 2 to choose from then I had 1 to choose from. So if I times 4 x 3 x 2 x 1 I will get 24. This is the same as 4! This sign is called factorial. And this is another way to find out how many arrangements there are in Lucy's name, this method is called factorial. With this method I do not have to list all of the different ways of Lucy's name. I will just have to find out how many different arrangements there are. The problem with this method is that if I had 1 letter or more repeated then this method would not work. To find out how many combinations there are in a persons name with no letters repeated is n! So if ...

See this essay or coursework document in full right now