<p>teacher didn't explain this well.. can someone explain to me the difference?</p>
<p>I know that choose is used when order does not matter and permute is used when order does matter.. but sometimes the question can be vague .. help?</p>
<p>Well, I don't know what Choose is. I think you mean combination. Permutation is when order does matter. Combination is when it does notmatter. If you post a sample question, I can tell you if its combination or permutation. You have to infer from the problem.</p>