SOLUTION: Please help! Construct a tree diagram showing all four-letter arrangements, without repetition, from the set: {D, S, U, X} to answer the question below.

Question 664361: Please help!
Construct a tree diagram showing all four-letter arrangements, without repetition, from the set:
{D, S, U, X} to answer the question below.
What are the total number of possible arrangements

explain how you got the answer please!
Found 2 solutions by lynnlo, jim_thompson5910:
Answer by lynnlo(4176) (Show Source): You can put this solution on YOUR website!
ok
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
To make a tree, you start with S, D, U, X as 4 separate branches. Then off of each branch, you add 3 more branches of whatever letter you took.

For example, off the 'S' branch, you add the letters 'D', 'U', and 'X' as 3 additional branches.

This will give you the following tree diagram

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