Posted by CB on Friday, May 21, 2010 at 6:35pm.
Which should be used a permutation or combination?
Determine the number of different ways in which a committee of four can be chosen from a group of twelve members?
please check my answer = combination

math  Reiny, Friday, May 21, 2010 at 6:39pm
yes, combination is correct.
Now, how many such committees are there ?