Question

Find total number of distinct possible outcomes n(S) of the following random experiment.
6 students are arranged in a row for a photograph.

Answer 1

Six students can be arranged in a row for a photograph in ⁶P₆ = 6! ways.
∴ n(S) = 6! = 6 × 5 × 4 × 3 × 2 × 1 = 720