133k views
5 votes
Twenty employees entered a company raffle for a spa day. One winner was drawn. The remaining entries went into a second drawing for baseball tickets. One winner was drawn. What is the probability that an employee wins baseball tickets, given they did not win the spa day?

User Ravenwing
by
5.8k points

2 Answers

4 votes
After the spa drawing there are 19 people in the pool for the baseball tickets ( the one is the spa winner).
So the employee would have a 1/19 chance of winning the baseball tickets.
This is a dependent probability or conditional event.
User Fserb
by
6.0k points
3 votes
The probability will be 1/19
Because one employee was already drawn at the spa day.
User Enguerran
by
5.9k points