1. The ________ ________ ________ states that when there are m1 different ways for one event to occur and m2 different ways for a second event to occur, there are m1 · m2 ways for both events to occur.
2. An ordering of n elements is a ________ of the elements.
3. The number of permutations of n elements taken r at a time is given by ________.
4. The number of ________ ________ of n objects is given by n! / n1! · n2! · n3! ·  . . . nk!.
5. When selecting subsets of a larger set in which order is not important, you are finding the number of ________ of n elements taken r at a time.
6. The number of combinations of n elements taken r at a time is given by ________.