A doctor visits her patients during morning rounds. In how many ways can the doctor visit 5

Question

patients during the morning rounds?

Answer 1

The doctor can visit the patients in different ways. One way to think about this is by using permutations.

If we consider visiting each patient as a distinct event, then the doctor can visit the 5 patients in a specific order in 5! (5 factorial) ways.

Therefore, the doctor can visit the 5 patients in 5! = 5 x 4 x 3 x 2 x 1 = 120 ways during the morning rounds.