Question 602332
the order that people are placed into a group is not a factor, so this is a combination question (not permutation)


this is kind of a "trick" question ___ if x + y = z ; then zCx = zCy


ALL the students will be assigned to one group or the other
___ the possible combinations of the two groups are concurrent ___ 15C8 is the same as 15C7
___ separating groups of 8 concurrently separates groups of 7
___ for every group of 8; there will automatically be a complementary group of 7


so the answer is 15C8 (or 15C7)