For each event circle the most appropriate ter 18 P 900 30 c

For each event, circle the most appropriate ter 18. P 900 30 counting principle combination 19. 6.5.4 3 2.1 counting principle combination 50! (50-5)! 5! counting principle combination 21. Six friends go to a movie. How many wa counting principle combination 22. In a sweepstakes with seven hundred ent prize, the second receives first prize, and

Solution

18. It\'s a permutation as it is like choosing 30 different members for 30 different awards from a total of 900 people.

19.This is acounting principle as counting the number of ways 6 people can sit in a bench without considering their positions