Solve the problem using the idea of labeling.
-In how many ways can 9 officers be assigned with 4 assigned to parking, 3 assigned to security, and 2 assigned to emergencies?
A) 1260
B) 2520
C) 40,320
D) 15,120

Question

Quizplus · Accepted Answer

The number of ways to assign 9 officers to 4 parking, 3 security, and 2 emergencies is 1260. This can be calculated using the formula for combinations: C(n, r) = n! / (r! * (n-r)!), where n is the total number of items and r is the number of items to be selected. In this case, n = 9 and r = 4, so C(9, 4) = 9! / (4! * 5!) = 1260.

Solve the Problem Using the Idea of Labeling