Question

Find total number of distinct possible outcomes n(S) of the following random experiment.
From a box containing 25 lottery tickets any 3 tickets are drawn at random.

Answer 1

3 tickets are selected from a box containing 25 tickets at random.
3 tickets can be drawn from 25 tickets in ²⁵C₃ ways.
∴ n(S) = ²⁵C₃

= `(25xx24xx23)/(3xx2xx1)`

= 2300