Practice:

1) Calculate the value of ₇P₃.   Answer

2) Calculate the value of ₉P₄.   Answer

3) If five sprinters are running a race during a track meet, how many arrangements are possible for first, second, and third place finishers? Answer

4) In how many ways can a president, vice-president, secretary, and treasurer be chosen for a club that has 12 members?  Answer

5) How many permutations are there for the letters in the word, STATISTICS?  Answer

6) How many permutations are there for the letters in the word, MISSISSIPPI?  Answer