Section 4.4 Homework 

3. Which of the following is NOT a requirement of the Combinations​ Rule,

for items that are all​ different?

Choose the correct answer below.

1. That order is taken into account​ (consider rearrangements of the same items to be different​ sequences).
2. That order is not taken into account​ (consider rearrangements of the same items to be the​ same).
3. That there be n different items available.
4. That r of the n items are selected​ (without replacement).