Question

Is this a permutation or combination problem:

For a band camp, you can choose two or three roommates from a group of 25 friends. In how many ways can you choose?

Answer 1

permutation is the correct one.

Reason: combination are used to calculate the number of possible selections of objects without regard to the order selected. "My fruit salad is a combination of apples, grapes, and bananas". No matter the order, it is still a fruit salad. - The friends cannot be repeated twice so it is not combination