I have the numeric numbers 0 to 9. What is the probability of combination of three digit numbers and what are they?

This question doesn't make sense as written - are you really asking about probability (the chance that some event will occur) or are you interested in knowing how many possible combinations there are of three digits? Please don't paraphrase the queston, but rather write it out exactly as it was given to you. And also show us what you think the answer may be, and why.