There are two different raffles you can enter.Raffle A has 500 tickets. Each ticket costs $7. One ticket will win a $220 prize, and the remaining tickets will win nothing.Raffle B has 250 tickets, and each costs $13. One ticket will win a $370 prize, six tickets will win a $260 prize, and seventeen tickets will win a $50 prize. The other tickets will win nothing.Which raffle is a better deal?(A)Raffle A(B)Raffle B
Q. There are two different raffles you can enter.Raffle A has 500 tickets. Each ticket costs $7. One ticket will win a $220 prize, and the remaining tickets will win nothing.Raffle B has 250 tickets, and each costs $13. One ticket will win a $370 prize, six tickets will win a $260 prize, and seventeen tickets will win a $50 prize. The other tickets will win nothing.Which raffle is a better deal?(A)Raffle A(B)Raffle B
Calculate Total Cost Raffle A: Calculate the total cost for all tickets in Raffle A: 500 tickets * $7 per ticket.500×7=$3500.
Calculate Expected Value Raffle A: Calculate the expected value for Raffle A by subtracting the prize from the total cost: $3500−$220.3500−220=$3280.
Calculate Total Cost Raffle B: Calculate the total cost for all tickets in Raffle B: 250 tickets * $13 per ticket.250×13=$3250.
Calculate Total Prize Money Raffle B: Calculate the total prize money for Raffle B: $370 for one ticket, $260 for six tickets, and $50 for seventeen tickets.370+(260×6)+(50×17)=$370+$1560+$850.370+1560+850=$2780.
Calculate Expected Value Raffle B: Calculate the expected value for Raffle B by subtracting the total prize money from the total cost: $3250−$2780.3250−2780=$470.
Compare Expected Values: Compare the expected values of both raffles to determine which is a better deal. The raffle with the lower expected value is the better deal.Raffle A expected value: $3280.Raffle B expected value: $470.
Identify Better Deal: Since Raffle B has a lower expected value, it is the better deal.