nPr v nCr - Experts Exchange - The network for technology professionals.
I understand that you would you use nCr when counting the number of possible ways you can for example be dealt 5 cards out of 52, or 3 out 13. 52 C 5 and 13 C 3. When do you use nPr. What is the... ... If you would pick 3 cards out of 52, the number of .....