144k views
2 votes
Five thousand tickets are sold at $1 each for a charity raffle. Tickets are to be drawn at random and monetary prizes awarded as follows: 1 prize of $500, 3 prizes of $100,

1 Answer

5 votes

Final answer:

To find the expected gain or loss in the raffle, calculate the expected value using the probabilities and values of the prizes.

Step-by-step explanation:

In this raffle, there are 5000 tickets sold at $1 each. The total amount collected from ticket sales is $5000. The prizes awarded are: 1 prize of $500, 3 prizes of $100, and 4 prizes of $25. To find the expected gain or loss, we need to calculate the expected value.

Expected value = (Probability of winning prize 1) * (Value of prize 1) + (Probability of winning prize 2) * (Value of prize 2) + (Probability of winning prize 3) * (Value of prize 3) + (Probability of winning prize 4) * (Value of prize 4) + (Probability of not winning any prize) * (Value of not winning any prize)

Using the information given, we can calculate the expected value.

User Wombleton
by
7.6k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories