Story:

There is a game with chances to win one out of 15 prizes. You need tickets to win a prize.

In total there are 1000 tickets in the game. You got 5 yourself.

The average of tickets per person is 3.5.

Question:

- What is the probablity if every ticket is only allowed to win one prize?
- What is the probablity if every person is only allowed to win one prize?

I know that for 1 prize it would be P = 1 / 200

Thing is, there are 15 prizes. How do you calculate this again?

Thanks in advance for the help